This is a note to let you know that I've just added the patch titled
iio: dln2: Check return value of devm_iio_trigger_register()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iio-dln2-check-return-value-of-devm_iio_trigger_register.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 90751fb9f224e0e1555b49a8aa9e68f6537e4cec Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@xxxxxxxxxx>
Date: Mon, 1 Nov 2021 14:30:43 +0100
Subject: iio: dln2: Check return value of devm_iio_trigger_register()
From: Lars-Peter Clausen <lars@xxxxxxxxxx>
commit 90751fb9f224e0e1555b49a8aa9e68f6537e4cec upstream.
Registering a trigger can fail and the return value of
devm_iio_trigger_register() must be checked. Otherwise undefined behavior
can occur when the trigger is used.
Fixes: 7c0299e879dd ("iio: adc: Add support for DLN2 ADC")
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211101133043.6974-1-lars@xxxxxxxxxx
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/iio/adc/dln2-adc.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
--- a/drivers/iio/adc/dln2-adc.c
+++ b/drivers/iio/adc/dln2-adc.c
@@ -655,7 +655,11 @@ static int dln2_adc_probe(struct platfor
return -ENOMEM;
}
iio_trigger_set_drvdata(dln2->trig, dln2);
- devm_iio_trigger_register(dev, dln2->trig);
+ ret = devm_iio_trigger_register(dev, dln2->trig);
+ if (ret) {
+ dev_err(dev, "failed to register trigger: %d\n", ret);
+ return ret;
+ }
iio_trigger_set_immutable(indio_dev, dln2->trig);
ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL,
Patches currently in stable-queue which might be from lars@xxxxxxxxxx are
queue-5.15/iio-trigger-fix-reference-counting.patch
queue-5.15/iio-itg3200-call-iio_trigger_notify_done-on-error.patch
queue-5.15/iio-ad7768-1-call-iio_trigger_notify_done-on-error.patch
queue-5.15/iio-dln2-check-return-value-of-devm_iio_trigger_register.patch
queue-5.15/iio-stk3310-don-t-return-error-code-in-interrupt-handler.patch
queue-5.15/iio-mma8452-fix-trigger-reference-couting.patch
queue-5.15/iio-kxsd9-don-t-return-error-code-in-trigger-handler.patch
queue-5.15/iio-ltr501-don-t-return-error-code-in-trigger-handler.patch
