Patch "iio: adc: stm32: Fixing err code to not indicate success" has been added to the 6.6-stable tree

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

    iio: adc: stm32: Fixing err code to not indicate success

to the 6.6-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-adc-stm32-fixing-err-code-to-not-indicate-succes.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 30e8a4f91d02af3ddf27f0dcbb20c94ce74a13c4
Author: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Date:   Sat Mar 30 18:53:00 2024 +0000

    iio: adc: stm32: Fixing err code to not indicate success
    
    [ Upstream commit 3735ca0b072656c3aa2cedc617a5e639b583a472 ]
    
    This path would result in returning 0 / success on an error path.
    
    Cc: Olivier Moysan <olivier.moysan@xxxxxxxxxxx>
    Fixes: 95bc818404b2 ("iio: adc: stm32-adc: add support of generic channels binding")
    Reviewed-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240330185305.1319844-4-jic23@xxxxxxxxxx
    Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index f7613efb870d5..0b3e487440a66 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -2234,6 +2234,7 @@ static int stm32_adc_generic_chan_init(struct iio_dev *indio_dev,
 			if (vin[0] != val || vin[1] >= adc_info->max_channels) {
 				dev_err(&indio_dev->dev, "Invalid channel in%d-in%d\n",
 					vin[0], vin[1]);
+				ret = -EINVAL;
 				goto err;
 			}
 		} else if (ret != -EINVAL) {




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