This is a note to let you know that I've just added the patch titled

iio: accel: bma400: Fix memory leak in bma400_get_steps_reg()

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-testing 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 be merged to the char-misc-next branch sometime soon, after it passes testing, and the merge window is open.

If you have any questions about this process, please let me know.

From 20690cd50e68c0313472c7539460168b8ea6444d Mon Sep 17 00:00:00 2001 From: Dong Chenchen dongchenchen2@huawei.com Date: Thu, 10 Nov 2022 09:07:26 +0800 Subject: iio: accel: bma400: Fix memory leak in bma400_get_steps_reg()

When regmap_bulk_read() fails, it does not free steps_raw, which will cause a memory leak issue, this patch fixes it.

Fixes: d221de60eee3 ("iio: accel: bma400: Add separate channel for step counter") Signed-off-by: Dong Chenchen dongchenchen2@huawei.com Reviewed-by: Jagath Jog J jagathjog1996@gmail.com Link: https://lore.kernel.org/r/20221110010726.235601-1-dongchenchen2@huawei.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/accel/bma400_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/accel/bma400_core.c b/drivers/iio/accel/bma400_core.c index 490c342ef72a..6e4d10a7cd32 100644 --- a/drivers/iio/accel/bma400_core.c +++ b/drivers/iio/accel/bma400_core.c @@ -805,8 +805,10 @@ static int bma400_get_steps_reg(struct bma400_data *data, int *val)

ret = regmap_bulk_read(data->regmap, BMA400_STEP_CNT0_REG, steps_raw, BMA400_STEP_RAW_LEN); - if (ret) + if (ret) { + kfree(steps_raw); return ret; + } *val = get_unaligned_le24(steps_raw); kfree(steps_raw); return IIO_VAL_INT;