May 2023 - Linux-stable-mirror

patch "iio: dac: mcp4725: Fix i2c_master_send() return value handling" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: dac: mcp4725: Fix i2c_master_send() return value handling to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 09d3bec7009186bdba77039df01e5834788b3f95 Mon Sep 17 00:00:00 2001 From: Marek Vasut <marex(a)denx.de> Date: Thu, 11 May 2023 02:43:30 +0200 Subject: iio: dac: mcp4725: Fix i2c_master_send() return value handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The i2c_master_send() returns number of sent bytes on success, or negative on error. The suspend/resume callbacks expect zero on success and non-zero on error. Adapt the return value of the i2c_master_send() to the expectation of the suspend and resume callbacks, including proper validation of the return value. Fixes: cf35ad61aca2 ("iio: add mcp4725 I2C DAC driver") Signed-off-by: Marek Vasut <marex(a)denx.de> Reviewed-by: Uwe Kleine-König <u.kleine-koenig(a)pengutronix.de> Link: https://lore.kernel.org/r/20230511004330.206942-1-marex@denx.de Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/dac/mcp4725.c | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index 46bf758760f8..3f5661a3718f 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -47,12 +47,18 @@ static int mcp4725_suspend(struct device *dev) struct mcp4725_data *data = iio_priv(i2c_get_clientdata( to_i2c_client(dev))); u8 outbuf[2]; + int ret; outbuf[0] = (data->powerdown_mode + 1) << 4; outbuf[1] = 0; data->powerdown = true; - return i2c_master_send(data->client, outbuf, 2); + ret = i2c_master_send(data->client, outbuf, 2); + if (ret < 0) + return ret; + else if (ret != 2) + return -EIO; + return 0; } static int mcp4725_resume(struct device *dev) @@ -60,13 +66,19 @@ static int mcp4725_resume(struct device *dev) struct mcp4725_data *data = iio_priv(i2c_get_clientdata( to_i2c_client(dev))); u8 outbuf[2]; + int ret; /* restore previous DAC value */ outbuf[0] = (data->dac_value >> 8) & 0xf; outbuf[1] = data->dac_value & 0xff; data->powerdown = false; - return i2c_master_send(data->client, outbuf, 2); + ret = i2c_master_send(data->client, outbuf, 2); + if (ret < 0) + return ret; + else if (ret != 2) + return -EIO; + return 0; } static DEFINE_SIMPLE_DEV_PM_OPS(mcp4725_pm_ops, mcp4725_suspend, mcp4725_resume); -- 2.40.1

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patch "iio: dac: build ad5758 driver when AD5758 is selected" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: dac: build ad5758 driver when AD5758 is selected to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From a146eccb68be161ae9eab5f3f68bb0ed7c0fbaa8 Mon Sep 17 00:00:00 2001 From: Lukas Bulwahn <lukas.bulwahn(a)gmail.com> Date: Mon, 8 May 2023 06:02:08 +0200 Subject: iio: dac: build ad5758 driver when AD5758 is selected Commit 28d1a7ac2a0d ("iio: dac: Add AD5758 support") adds the config AD5758 and the corresponding driver ad5758.c. In the Makefile, the ad5758 driver is however included when AD5755 is selected, not when AD5758 is selected. Probably, this was simply a mistake that happened by copy-and-paste and forgetting to adjust the actual line. Surprisingly, no one has ever noticed that this driver is actually only included when AD5755 is selected and that the config AD5758 has actually no effect on the build. Fixes: 28d1a7ac2a0d ("iio: dac: Add AD5758 support") Signed-off-by: Lukas Bulwahn <lukas.bulwahn(a)gmail.com> Link: https://lore.kernel.org/r/20230508040208.12033-1-lukas.bulwahn@gmail.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/dac/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile index 6c74fea21736..addd97a78838 100644 --- a/drivers/iio/dac/Makefile +++ b/drivers/iio/dac/Makefile @@ -17,7 +17,7 @@ obj-$(CONFIG_AD5592R_BASE) += ad5592r-base.o obj-$(CONFIG_AD5592R) += ad5592r.o obj-$(CONFIG_AD5593R) += ad5593r.o obj-$(CONFIG_AD5755) += ad5755.o -obj-$(CONFIG_AD5755) += ad5758.o +obj-$(CONFIG_AD5758) += ad5758.o obj-$(CONFIG_AD5761) += ad5761.o obj-$(CONFIG_AD5764) += ad5764.o obj-$(CONFIG_AD5766) += ad5766.o -- 2.40.1

2 years

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patch "iio: addac: ad74413: fix resistance input processing" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: addac: ad74413: fix resistance input processing to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 24febc99ca725dcf42d57168a2f4e8a75a5ade92 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes <linux(a)rasmusvillemoes.dk> Date: Wed, 3 May 2023 11:58:17 +0200 Subject: iio: addac: ad74413: fix resistance input processing On success, ad74413r_get_single_adc_result() returns IIO_VAL_INT aka 1. So currently, the IIO_CHAN_INFO_PROCESSED case is effectively equivalent to the IIO_CHAN_INFO_RAW case, and we never call ad74413r_adc_to_resistance_result() to convert the adc measurement to ohms. Check ret for being negative rather than non-zero. Fixes: fea251b6a5dbd (iio: addac: add AD74413R driver) Signed-off-by: Rasmus Villemoes <linux(a)rasmusvillemoes.dk> Reviewed-by: Nuno Sa <nuno.sa(a)analog.com> Link: https://lore.kernel.org/r/20230503095817.452551-1-linux@rasmusvillemoes.dk Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/addac/ad74413r.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iio/addac/ad74413r.c b/drivers/iio/addac/ad74413r.c index 07e9f6ae16a8..e3366cf5eb31 100644 --- a/drivers/iio/addac/ad74413r.c +++ b/drivers/iio/addac/ad74413r.c @@ -1007,7 +1007,7 @@ static int ad74413r_read_raw(struct iio_dev *indio_dev, ret = ad74413r_get_single_adc_result(indio_dev, chan->channel, val); - if (ret) + if (ret < 0) return ret; ad74413r_adc_to_resistance_result(*val, val); -- 2.40.1

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patch "iio: light: vcnl4035: fixed chip ID check" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: light: vcnl4035: fixed chip ID check to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From a551c26e8e568fad42120843521529241b9bceec Mon Sep 17 00:00:00 2001 From: Frank Li <Frank.Li(a)nxp.com> Date: Mon, 1 May 2023 10:36:04 -0400 Subject: iio: light: vcnl4035: fixed chip ID check VCNL4035 register(0xE) ID_L and ID_M define as: ID_L: 0x80 ID_H: 7:6 (0:0) 5:4 (0:0) slave address = 0x60 (7-bit) (0:1) slave address = 0x51 (7-bit) (1:0) slave address = 0x40 (7-bit) (1:0) slave address = 0x41 (7-bit) 3:0 Version code default (0:0:0:0) So just check ID_L. Fixes: 55707294c4eb ("iio: light: Add support for vishay vcnl4035") Signed-off-by: Frank Li <Frank.Li(a)nxp.com> Link: https://lore.kernel.org/r/20230501143605.1615549-1-Frank.Li@nxp.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/light/vcnl4035.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c index 14e29330e972..94f5d611e98c 100644 --- a/drivers/iio/light/vcnl4035.c +++ b/drivers/iio/light/vcnl4035.c @@ -8,6 +8,7 @@ * TODO: Proximity */ #include <linux/bitops.h> +#include <linux/bitfield.h> #include <linux/i2c.h> #include <linux/module.h> #include <linux/pm_runtime.h> @@ -42,6 +43,7 @@ #define VCNL4035_ALS_PERS_MASK GENMASK(3, 2) #define VCNL4035_INT_ALS_IF_H_MASK BIT(12) #define VCNL4035_INT_ALS_IF_L_MASK BIT(13) +#define VCNL4035_DEV_ID_MASK GENMASK(7, 0) /* Default values */ #define VCNL4035_MODE_ALS_ENABLE BIT(0) @@ -413,6 +415,7 @@ static int vcnl4035_init(struct vcnl4035_data *data) return ret; } + id = FIELD_GET(VCNL4035_DEV_ID_MASK, id); if (id != VCNL4035_DEV_ID_VAL) { dev_err(&data->client->dev, "Wrong id, got %x, expected %x\n", id, VCNL4035_DEV_ID_VAL); -- 2.40.1

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patch "iio: adc: stm32-adc: skip adc-diff-channels setup if none is present" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: stm32-adc: skip adc-diff-channels setup if none is present to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 9c0d6ccd7d6bbd275e390b55a3390b4274291d95 Mon Sep 17 00:00:00 2001 From: Sean Nyekjaer <sean(a)geanix.com> Date: Wed, 3 May 2023 18:20:28 +0200 Subject: iio: adc: stm32-adc: skip adc-diff-channels setup if none is present If no adc differential channels are defined driver will fail with EINVAL: stm32-adc: probe of 48003000.adc:adc@0 failed with error -22 Fix this by skipping the initialization if no channels are defined. This applies only to the legacy way of initializing adc channels. Fixes: d7705f35448a ("iio: adc: stm32-adc: convert to device properties") Signed-off-by: Sean Nyekjaer <sean(a)geanix.com> Link: https://lore.kernel.org/r/20230503162029.3654093-1-sean@geanix.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/stm32-adc.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c index 1aadb2ad2cab..c105d82c3e45 100644 --- a/drivers/iio/adc/stm32-adc.c +++ b/drivers/iio/adc/stm32-adc.c @@ -2006,16 +2006,15 @@ static int stm32_adc_get_legacy_chan_count(struct iio_dev *indio_dev, struct stm * to get the *real* number of channels. */ ret = device_property_count_u32(dev, "st,adc-diff-channels"); - if (ret < 0) - return ret; - - ret /= (int)(sizeof(struct stm32_adc_diff_channel) / sizeof(u32)); - if (ret > adc_info->max_channels) { - dev_err(&indio_dev->dev, "Bad st,adc-diff-channels?\n"); - return -EINVAL; - } else if (ret > 0) { - adc->num_diff = ret; - num_channels += ret; + if (ret > 0) { + ret /= (int)(sizeof(struct stm32_adc_diff_channel) / sizeof(u32)); + if (ret > adc_info->max_channels) { + dev_err(&indio_dev->dev, "Bad st,adc-diff-channels?\n"); + return -EINVAL; + } else if (ret > 0) { + adc->num_diff = ret; + num_channels += ret; + } } /* Optional sample time is provided either for each, or all channels */ -- 2.40.1

2 years

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patch "iio: adc: stm32-adc: skip adc-channels setup if none is present" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: stm32-adc: skip adc-channels setup if none is present to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 3e27ef0ced49f8ae7883c25fadf76a2086e99025 Mon Sep 17 00:00:00 2001 From: Sean Nyekjaer <sean(a)geanix.com> Date: Wed, 3 May 2023 18:20:29 +0200 Subject: iio: adc: stm32-adc: skip adc-channels setup if none is present If only adc differential channels are defined driver will fail with stm32-adc: probe of 48003000.adc:adc@0 failed with error -22 Fix this by skipping the initialization if no channels are defined. This applies only to the legacy way of initializing adc channels. Fixes: d7705f35448a ("iio: adc: stm32-adc: convert to device properties") Signed-off-by: Sean Nyekjaer <sean(a)geanix.com> Reviewed-by: Olivier Moysan <olivier.moysan(a)foss.st.com> Link: https://lore.kernel.org/r/20230503162029.3654093-2-sean@geanix.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/stm32-adc.c | 42 ++++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 19 deletions(-) diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c index c105d82c3e45..bd7e2408bf28 100644 --- a/drivers/iio/adc/stm32-adc.c +++ b/drivers/iio/adc/stm32-adc.c @@ -2036,6 +2036,7 @@ static int stm32_adc_legacy_chan_init(struct iio_dev *indio_dev, struct stm32_adc_diff_channel diff[STM32_ADC_CH_MAX]; struct device *dev = &indio_dev->dev; u32 num_diff = adc->num_diff; + int num_se = nchans - num_diff; int size = num_diff * sizeof(*diff) / sizeof(u32); int scan_index = 0, ret, i, c; u32 smp = 0, smps[STM32_ADC_CH_MAX], chans[STM32_ADC_CH_MAX]; @@ -2062,29 +2063,32 @@ static int stm32_adc_legacy_chan_init(struct iio_dev *indio_dev, scan_index++; } } - - ret = device_property_read_u32_array(dev, "st,adc-channels", chans, - nchans); - if (ret) - return ret; - - for (c = 0; c < nchans; c++) { - if (chans[c] >= adc_info->max_channels) { - dev_err(&indio_dev->dev, "Invalid channel %d\n", - chans[c]); - return -EINVAL; + if (num_se > 0) { + ret = device_property_read_u32_array(dev, "st,adc-channels", chans, num_se); + if (ret) { + dev_err(&indio_dev->dev, "Failed to get st,adc-channels %d\n", ret); + return ret; } - /* Channel can't be configured both as single-ended & diff */ - for (i = 0; i < num_diff; i++) { - if (chans[c] == diff[i].vinp) { - dev_err(&indio_dev->dev, "channel %d misconfigured\n", chans[c]); + for (c = 0; c < num_se; c++) { + if (chans[c] >= adc_info->max_channels) { + dev_err(&indio_dev->dev, "Invalid channel %d\n", + chans[c]); return -EINVAL; } + + /* Channel can't be configured both as single-ended & diff */ + for (i = 0; i < num_diff; i++) { + if (chans[c] == diff[i].vinp) { + dev_err(&indio_dev->dev, "channel %d misconfigured\n", + chans[c]); + return -EINVAL; + } + } + stm32_adc_chan_init_one(indio_dev, &channels[scan_index], + chans[c], 0, scan_index, false); + scan_index++; } - stm32_adc_chan_init_one(indio_dev, &channels[scan_index], - chans[c], 0, scan_index, false); - scan_index++; } if (adc->nsmps > 0) { @@ -2305,7 +2309,7 @@ static int stm32_adc_chan_fw_init(struct iio_dev *indio_dev, bool timestamping) if (legacy) ret = stm32_adc_legacy_chan_init(indio_dev, adc, channels, - num_channels); + timestamping ? num_channels - 1 : num_channels); else ret = stm32_adc_generic_chan_init(indio_dev, adc, channels); if (ret < 0) -- 2.40.1

2 years

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patch "iio: adc: ad7192: Change "shorted" channels to differential" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: ad7192: Change "shorted" channels to differential to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From e55245d115bb9054cb72cdd5dda5660f4484873a Mon Sep 17 00:00:00 2001 From: Paul Cercueil <paul(a)crapouillou.net> Date: Thu, 30 Mar 2023 12:21:00 +0200 Subject: iio: adc: ad7192: Change "shorted" channels to differential The AD7192 provides a specific channel configuration where both negative and positive inputs are connected to AIN2. This was represented in the ad7192 driver as a IIO channel with .channel = 2 and .extended_name set to "shorted". The problem with this approach, is that the driver provided two IIO channels with the identifier .channel = 2; one "shorted" and the other not. This goes against the IIO ABI, as a channel identifier should be unique. Address this issue by changing "shorted" channels to being differential instead, with channel 2 vs. itself, as we're actually measuring AIN2 vs. itself. Note that the fix tag is for the commit that moved the driver out of staging. The bug existed before that, but backporting would become very complex further down and unlikely to happen. Fixes: b581f748cce0 ("staging: iio: adc: ad7192: move out of staging") Signed-off-by: Paul Cercueil <paul(a)crapouillou.net> Co-developed-by: Alisa Roman <alisa.roman(a)analog.com> Signed-off-by: Alisa Roman <alisa.roman(a)analog.com> Reviewed-by: Nuno Sa <nuno.sa(a)analog.com> Link: https://lore.kernel.org/r/20230330102100.17590-1-paul@crapouillou.net Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/ad7192.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c index 55a6ab591016..99bb604b78c8 100644 --- a/drivers/iio/adc/ad7192.c +++ b/drivers/iio/adc/ad7192.c @@ -897,10 +897,6 @@ static const struct iio_info ad7195_info = { __AD719x_CHANNEL(_si, _channel1, -1, _address, NULL, IIO_VOLTAGE, \ BIT(IIO_CHAN_INFO_SCALE), ad7192_calibsys_ext_info) -#define AD719x_SHORTED_CHANNEL(_si, _channel1, _address) \ - __AD719x_CHANNEL(_si, _channel1, -1, _address, "shorted", IIO_VOLTAGE, \ - BIT(IIO_CHAN_INFO_SCALE), ad7192_calibsys_ext_info) - #define AD719x_TEMP_CHANNEL(_si, _address) \ __AD719x_CHANNEL(_si, 0, -1, _address, NULL, IIO_TEMP, 0, NULL) @@ -908,7 +904,7 @@ static const struct iio_chan_spec ad7192_channels[] = { AD719x_DIFF_CHANNEL(0, 1, 2, AD7192_CH_AIN1P_AIN2M), AD719x_DIFF_CHANNEL(1, 3, 4, AD7192_CH_AIN3P_AIN4M), AD719x_TEMP_CHANNEL(2, AD7192_CH_TEMP), - AD719x_SHORTED_CHANNEL(3, 2, AD7192_CH_AIN2P_AIN2M), + AD719x_DIFF_CHANNEL(3, 2, 2, AD7192_CH_AIN2P_AIN2M), AD719x_CHANNEL(4, 1, AD7192_CH_AIN1), AD719x_CHANNEL(5, 2, AD7192_CH_AIN2), AD719x_CHANNEL(6, 3, AD7192_CH_AIN3), @@ -922,7 +918,7 @@ static const struct iio_chan_spec ad7193_channels[] = { AD719x_DIFF_CHANNEL(2, 5, 6, AD7193_CH_AIN5P_AIN6M), AD719x_DIFF_CHANNEL(3, 7, 8, AD7193_CH_AIN7P_AIN8M), AD719x_TEMP_CHANNEL(4, AD7193_CH_TEMP), - AD719x_SHORTED_CHANNEL(5, 2, AD7193_CH_AIN2P_AIN2M), + AD719x_DIFF_CHANNEL(5, 2, 2, AD7193_CH_AIN2P_AIN2M), AD719x_CHANNEL(6, 1, AD7193_CH_AIN1), AD719x_CHANNEL(7, 2, AD7193_CH_AIN2), AD719x_CHANNEL(8, 3, AD7193_CH_AIN3), -- 2.40.1

2 years

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patch "iio: accel: st_accel: Fix invalid mount_matrix on devices without" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: accel: st_accel: Fix invalid mount_matrix on devices without to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 79b8ded9d9c595db9bd5b2f62f5f738b36de1e22 Mon Sep 17 00:00:00 2001 From: Hans de Goede <hdegoede(a)redhat.com> Date: Sun, 16 Apr 2023 23:24:09 +0200 Subject: iio: accel: st_accel: Fix invalid mount_matrix on devices without ACPI _ONT method When apply_acpi_orientation() fails, st_accel_common_probe() will fall back to iio_read_mount_matrix(), which checks for a mount-matrix device property and if that is not set falls back to the identity matrix. But when a sensor has no ACPI companion fwnode, or when the ACPI fwnode does not have a "_ONT" method apply_acpi_orientation() was returning 0, causing iio_read_mount_matrix() to never get called resulting in an invalid mount_matrix: [root@fedora ~]# cat /sys/bus/iio/devices/iio\:device0/mount_matrix (null), (null), (null); (null), (null), (null); (null), (null), (null) Fix this by making apply_acpi_orientation() always return an error when it did not set the mount_matrix. Fixes: 3d8ad94bb175 ("iio: accel: st_sensors: Support generic mounting matrix") Signed-off-by: Hans de Goede <hdegoede(a)redhat.com> Reviewed-by: Linus Walleij <linus.walleij(a)linaro.org> Tested-by: Marius Hoch <mail(a)mariushoch.de> Link: https://lore.kernel.org/r/20230416212409.310936-1-hdegoede@redhat.com Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/accel/st_accel_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c index 5f7d81b44b1d..282e539157f8 100644 --- a/drivers/iio/accel/st_accel_core.c +++ b/drivers/iio/accel/st_accel_core.c @@ -1291,12 +1291,12 @@ static int apply_acpi_orientation(struct iio_dev *indio_dev) adev = ACPI_COMPANION(indio_dev->dev.parent); if (!adev) - return 0; + return -ENXIO; /* Read _ONT data, which should be a package of 6 integers. */ status = acpi_evaluate_object(adev->handle, "_ONT", NULL, &buffer); if (status == AE_NOT_FOUND) { - return 0; + return -ENXIO; } else if (ACPI_FAILURE(status)) { dev_warn(&indio_dev->dev, "failed to execute _ONT: %d\n", status); -- 2.40.1

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patch "iio: adc: mxs-lradc: fix the order of two cleanup operations" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: adc: mxs-lradc: fix the order of two cleanup operations to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 27b2ed5b6d53cd62fc61c3f259ae52f5cac23b66 Mon Sep 17 00:00:00 2001 From: Jiakai Luo <jkluo(a)hust.edu.cn> Date: Sat, 22 Apr 2023 06:34:06 -0700 Subject: iio: adc: mxs-lradc: fix the order of two cleanup operations Smatch reports: drivers/iio/adc/mxs-lradc-adc.c:766 mxs_lradc_adc_probe() warn: missing unwind goto? the order of three init operation: 1.mxs_lradc_adc_trigger_init 2.iio_triggered_buffer_setup 3.mxs_lradc_adc_hw_init thus, the order of three cleanup operation should be: 1.mxs_lradc_adc_hw_stop 2.iio_triggered_buffer_cleanup 3.mxs_lradc_adc_trigger_remove we exchange the order of two cleanup operations, introducing the following differences: 1.if mxs_lradc_adc_trigger_init fails, returns directly; 2.if trigger_init succeeds but iio_triggered_buffer_setup fails, goto err_trig and remove the trigger. In addition, we also reorder the unwind that goes on in the remove() callback to match the new ordering. Fixes: 6dd112b9f85e ("iio: adc: mxs-lradc: Add support for ADC driver") Signed-off-by: Jiakai Luo <jkluo(a)hust.edu.cn> Reviewed-by: Dongliang Mu <dzm91(a)hust.edu.cn> Link: https://lore.kernel.org/r/20230422133407.72908-1-jkluo@hust.edu.cn Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/adc/mxs-lradc-adc.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c index bca79a93cbe4..a50f39143d3e 100644 --- a/drivers/iio/adc/mxs-lradc-adc.c +++ b/drivers/iio/adc/mxs-lradc-adc.c @@ -757,13 +757,13 @@ static int mxs_lradc_adc_probe(struct platform_device *pdev) ret = mxs_lradc_adc_trigger_init(iio); if (ret) - goto err_trig; + return ret; ret = iio_triggered_buffer_setup(iio, &iio_pollfunc_store_time, &mxs_lradc_adc_trigger_handler, &mxs_lradc_adc_buffer_ops); if (ret) - return ret; + goto err_trig; adc->vref_mv = mxs_lradc_adc_vref_mv[lradc->soc]; @@ -801,9 +801,9 @@ static int mxs_lradc_adc_probe(struct platform_device *pdev) err_dev: mxs_lradc_adc_hw_stop(adc); - mxs_lradc_adc_trigger_remove(iio); -err_trig: iio_triggered_buffer_cleanup(iio); +err_trig: + mxs_lradc_adc_trigger_remove(iio); return ret; } @@ -814,8 +814,8 @@ static int mxs_lradc_adc_remove(struct platform_device *pdev) iio_device_unregister(iio); mxs_lradc_adc_hw_stop(adc); - mxs_lradc_adc_trigger_remove(iio); iio_triggered_buffer_cleanup(iio); + mxs_lradc_adc_trigger_remove(iio); return 0; } -- 2.40.1

2 years

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patch "iio: tmag5273: Fix runtime PM leak on measurement error" added to char-misc-linus

by gregkh＠linuxfoundation.org

This is a note to let you know that I've just added the patch titled iio: tmag5273: Fix runtime PM leak on measurement error to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch. The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.) The patch will hopefully also be merged in Linus's tree for the next -rc kernel release. If you have any questions about this process, please let me know. From 265c82ea8b172129cb6d4eff41af856c3aff6168 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen <lars(a)metafoo.de> Date: Thu, 13 Apr 2023 18:37:52 -0700 Subject: iio: tmag5273: Fix runtime PM leak on measurement error The tmag5273 gets a runtime PM reference before reading a measurement and releases it when done. But if the measurement fails the tmag5273_read_raw() function exits before releasing the reference. Make sure that this error path also releases the runtime PM reference. Fixes: 866a1389174b ("iio: magnetometer: add ti tmag5273 driver") Signed-off-by: Lars-Peter Clausen <lars(a)metafoo.de> Acked-by: Gerald Loacker <gerald.loacker(a)wolfvision.net> Reviewed-by: Nuno Sa <nuno.sa(a)analog.com> Link: https://lore.kernel.org/r/20230414013752.498767-1-lars@metafoo.de Cc: <Stable(a)vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron(a)huawei.com> --- drivers/iio/magnetometer/tmag5273.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/iio/magnetometer/tmag5273.c b/drivers/iio/magnetometer/tmag5273.c index 28bb7efe8df8..e155a75b3cd2 100644 --- a/drivers/iio/magnetometer/tmag5273.c +++ b/drivers/iio/magnetometer/tmag5273.c @@ -296,12 +296,13 @@ static int tmag5273_read_raw(struct iio_dev *indio_dev, return ret; ret = tmag5273_get_measure(data, &t, &x, &y, &z, &angle, &magnitude); - if (ret) - return ret; pm_runtime_mark_last_busy(data->dev); pm_runtime_put_autosuspend(data->dev); + if (ret) + return ret; + switch (chan->address) { case TEMPERATURE: *val = t; -- 2.40.1

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