This is a note to let you know that I've just added the patch titled
iio: light: isl29028: Fix the warning in isl29028_remove()
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 06674fc7c003b9d0aa1d37fef7ab2c24802cc6ad Mon Sep 17 00:00:00 2001 From: Zheyu Ma zheyuma97@gmail.com Date: Sun, 17 Jul 2022 08:42:41 +0800 Subject: iio: light: isl29028: Fix the warning in isl29028_remove()
The driver use the non-managed form of the register function in isl29028_remove(). To keep the release order as mirroring the ordering in probe, the driver should use non-managed form in probe, too.
The following log reveals it:
[ 32.374955] isl29028 0-0010: remove [ 32.376861] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN PTI [ 32.377676] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 32.379432] RIP: 0010:kernfs_find_and_get_ns+0x28/0xe0 [ 32.385461] Call Trace: [ 32.385807] sysfs_unmerge_group+0x59/0x110 [ 32.386110] dpm_sysfs_remove+0x58/0xc0 [ 32.386391] device_del+0x296/0xe50 [ 32.386959] cdev_device_del+0x1d/0xd0 [ 32.387231] devm_iio_device_unreg+0x27/0xb0 [ 32.387542] devres_release_group+0x319/0x3d0 [ 32.388162] i2c_device_remove+0x93/0x1f0
Fixes: 2db5054ac28d ("staging: iio: isl29028: add runtime power management support") Signed-off-by: Zheyu Ma zheyuma97@gmail.com Link: https://lore.kernel.org/r/20220717004241.2281028-1-zheyuma97@gmail.com Cc: Stable@vger.kernel.org Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com --- drivers/iio/light/isl29028.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/light/isl29028.c b/drivers/iio/light/isl29028.c index 4dde9707a52d..ff5996d77818 100644 --- a/drivers/iio/light/isl29028.c +++ b/drivers/iio/light/isl29028.c @@ -625,7 +625,7 @@ static int isl29028_probe(struct i2c_client *client, ISL29028_POWER_OFF_DELAY_MS); pm_runtime_use_autosuspend(&client->dev);
- ret = devm_iio_device_register(indio_dev->dev.parent, indio_dev); + ret = iio_device_register(indio_dev); if (ret < 0) { dev_err(&client->dev, "%s(): iio registration failed with error %d\n",