media: i2c: rdacm21: Fix uninitialized value

[ Upstream commit 33c7ae8f49e3413c81e879e1fdfcea4c5516e37b ]

Fix the following smatch warning:

drivers/media/i2c/rdacm21.c:373 ov10640_check_id() error: uninitialized
symbol 'val'.

Initialize 'val' to 0 in the ov10640_check_id() function.

Fixes: 2b821698dc73 ("media: i2c: rdacm21: Power up OV10640 before OV490")
Reported-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/media/i2c/rdacm21.c b/drivers/media/i2c/rdacm21.c
index ef31cf5f23cac4bab0c4a7c2f315f63df4e5ebd3..7995cb956aa7f58967d76d522e80a3a51284a692 100644 (file)
--- a/drivers/media/i2c/rdacm21.c
+++ b/drivers/media/i2c/rdacm21.c
@@ -351,7 +351,7 @@ static void ov10640_power_up(struct rdacm21_device *dev)
 static int ov10640_check_id(struct rdacm21_device *dev)
 {
        unsigned int i;
-       u8 val;
+       u8 val = 0;
 
        /* Read OV10640 ID to test communications. */
        for (i = 0; i < OV10640_PID_TIMEOUT; ++i) {