* [PATCH] io: imu: st_lsm6dsx: check if dev is null pointer
@ 2021-10-08 3:21 Jiasheng Jiang
0 siblings, 0 replies; only message in thread
From: Jiasheng Jiang @ 2021-10-08 3:21 UTC (permalink / raw)
To: lorenzo.bianconi83, jic23, lars; +Cc: linux-iio, linux-kernel, Jiasheng Jiang
The parameter 'dev' of st_lsm6dsx_probe() isn't been
checked before used, including when st_lsm6dsx_probe() is called.
Therefore, it might be better to check, just in case.
Fixes: 290a6ce ("iio: imu: add support to lsm6dsx driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 7cedaab..7b4754d 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -2199,6 +2199,8 @@ int st_lsm6dsx_probe(struct device *dev, int irq, int hw_id,
const char *name = NULL;
int i, err;
+ if (!dev)
+ return -ENOMEM;
hw = devm_kzalloc(dev, sizeof(*hw), GFP_KERNEL);
if (!hw)
return -ENOMEM;
--
2.7.4
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