UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

media: i2c: ds90ub913: Fix use of uninitialized variables 

smatch reports some uninitialized variables:

drivers/media/i2c/ds90ub913.c:481 ub913_log_status() error: uninitialized symbol 'v1'.
drivers/media/i2c/ds90ub913.c:481 ub913_log_status() error: uninitialized symbol 'v2'.

These are used only for printing debug information, and the use of an
uninitialized variable only happens if an i2c transaction has failed,
which will print an error. Thus, fix the errors just by initializing the
variables to 0.

Closes: https://lore.kernel.org/all/8d6daeb1-b62a-bbb2-b840-8759c84f2085@xs4all.nl/

Fixes: c158d0d4ff ("media: i2c: add DS90UB913 driver")
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Tomi Valkeinen 2023-08-03 14:15:45 +02:00 committed by Mauro Carvalho Chehab
parent b8e277b1db
commit ea90034e8f
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/i2c/ds90ub913.c
View File

@ -471,7 +471,7 @@ static int ub913_log_status(struct v4l2_subdev *sd)
{
struct ub913_data *priv = sd_to_ub913(sd);
struct device *dev = &priv->client->dev;
u8 v = 0, v1, v2;
u8 v = 0, v1 = 0, v2 = 0;
ub913_read(priv, UB913_REG_MODE_SEL, &v);
dev_info(dev, "MODE_SEL %#02x\n", v);