diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-6.1/950-0991-media-i2c-imx477-Fix-locking-in-imx477_init_controls.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-6.1/950-0991-media-i2c-imx477-Fix-locking-in-imx477_init_controls.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-6.1/950-0991-media-i2c-imx477-Fix-locking-in-imx477_init_controls.patch b/target/linux/bcm27xx/patches-6.1/950-0991-media-i2c-imx477-Fix-locking-in-imx477_init_controls.patch new file mode 100644 index 0000000000..9d7869af9c --- /dev/null +++ b/target/linux/bcm27xx/patches-6.1/950-0991-media-i2c-imx477-Fix-locking-in-imx477_init_controls.patch @@ -0,0 +1,34 @@ +From 72c25bbb761de2b2acd9f8b652d63e2a2f1caeed Mon Sep 17 00:00:00 2001 +From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> +Date: Mon, 11 Sep 2023 12:17:25 +0300 +Subject: [PATCH] media: i2c: imx477: Fix locking in imx477_init_controls() + +The driver does not lock the imx477 mutex when calling +imx477_set_framing_limits(), leading to: + +WARNING: CPU: 3 PID: 426 at drivers/media/v4l2-core/v4l2-ctrls-api.c:934 __v4l2_ctrl_modify_range+0x1a0/0x210 [ +videodev] + +Fix this by taking the lock. + +Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> +--- + drivers/media/i2c/imx477.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/drivers/media/i2c/imx477.c ++++ b/drivers/media/i2c/imx477.c +@@ -2069,9 +2069,13 @@ static int imx477_init_controls(struct i + + imx477->sd.ctrl_handler = ctrl_hdlr; + ++ mutex_lock(&imx477->mutex); ++ + /* Setup exposure and frame/line length limits. */ + imx477_set_framing_limits(imx477); + ++ mutex_unlock(&imx477->mutex); ++ + return 0; + + error: |