iio: adc: xilinx-ams: fix devm_krealloc() return value check

commit c3de3f22f30338b0249beedf950aaa1f9ee0ca49 upstream.

The clang-analyzer reported a warning: "Value stored to 'ret'
is never read".

Fix the return value check if devm_krealloc() fails to resize
ams_channels.

Fixes: cf889d148fe4 ("iio: adc: Add Xilinx AMS driver")
Signed-off-by: Marco Pagani <marpagan@redhat.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20221125113112.219290-1-marpagan@redhat.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/iio/adc/xilinx-ams.c b/drivers/iio/adc/xilinx-ams.c
index 5b4bdf3a26bb8a942151ddbdea53dc3ec6a8f5ad..a507d2e17079286797a726fb52563346525a2393 100644 (file)
--- a/drivers/iio/adc/xilinx-ams.c
+++ b/drivers/iio/adc/xilinx-ams.c
@@ -1329,7 +1329,7 @@ static int ams_parse_firmware(struct iio_dev *indio_dev)
 
        dev_channels = devm_krealloc(dev, ams_channels, dev_size, GFP_KERNEL);
        if (!dev_channels)
-               ret = -ENOMEM;
+               return -ENOMEM;
 
        indio_dev->channels = dev_channels;
        indio_dev->num_channels = num_channels;