diff mbox series

[v2,1/3] media: i2c: ds90ub913: Fix use of uninitialized variables

Message ID 20230803-ub9xx-uninit-vars-v2-1-512570ecb798@ideasonboard.com (mailing list archive)
State Accepted
Delegated to: Sakari Ailus
Headers
Series media: i2c: ds90ubxxx: Fix uninitialized variable uses |

Commit Message

Tomi Valkeinen Aug. 3, 2023, 12:15 p.m. UTC 
  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.

Fixes: c158d0d4ff15 ("media: i2c: add DS90UB913 driver")
Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Closes: https://lore.kernel.org/all/8d6daeb1-b62a-bbb2-b840-8759c84f2085@xs4all.nl/
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
---
 drivers/media/i2c/ds90ub913.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/i2c/ds90ub913.c b/drivers/media/i2c/ds90ub913.c
index 80d9cf6dd945..b2115e3519e2 100644
--- a/drivers/media/i2c/ds90ub913.c
+++ b/drivers/media/i2c/ds90ub913.c
@@ -469,7 +469,7 @@  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);