linux-kernel - [PATCH] iio: adc: xilinx-ams: fix devm

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Message-Id: <20221125113112.219290-1-marpagan@redhat.com>
Date:   Fri, 25 Nov 2022 12:31:12 +0100
From:   Marco Pagani <marpagan@...hat.com>
To:     Anand Ashok Dumbre <anand.ashok.dumbre@...inx.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michal Simek <michal.simek@...inx.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        Manish Narani <manish.narani@...inx.com>
Cc:     Marco Pagani <marpagan@...hat.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: [PATCH] iio: adc: xilinx-ams: fix devm_krealloc() return value check

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 <marpagan@...hat.com>
---
 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