Thread (3 messages) 3 messages, 3 authors, 2022-12-04

Re: [PATCH] iio: adc: xilinx-ams: fix devm_krealloc() return value check

From: Jonathan Cameron <jic23@kernel.org>
Date: 2022-12-04 14:23:36
Also in: linux-iio, lkml, llvm

On Wed, 30 Nov 2022 18:04:26 +0100
Michal Simek [off-list ref] wrote:
On 11/25/22 12:31, Marco Pagani wrote:
quoted
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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: d5c70627a794 ("iio: adc: Add Xilinx AMS driver")
Signed-off-by: Marco Pagani <redacted>
---
  drivers/iio/adc/xilinx-ams.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/xilinx-ams.c b/drivers/iio/adc/xilinx-ams.c
index 5b4bdf3a26bb..a507d2e17079 100644
--- 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;
--
2.38.1
  
Acked-by: Michal Simek <michal.simek@amd.com>
Applied to the fixes-togreg branch of iio.git.  Given merge window opening soon
it might be a few weeks before this goes upstream.

Thanks,

Jonathan
Thanks,
Michal

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