[PATCH 6.1 192/609] media: cedrus: Fix missing cleanup in error path

6.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Samuel Holland <[email protected]>

commit d99732334aaf33b9f93926b70b6a11c2cef3de39 upstream.

According to the documentation struct v4l2_fh has to be cleaned up with
v4l2_fh_exit() before being freed. [1]
Currently there is no actual bug here, when v4l2_fh_exit() isn't called.
v4l2_fh_exit() in this case only destroys internal mutex. But it may
change in the future, when v4l2_fh_init/v4l2_fh_exit will be enhanced.

1. https://docs.kernel.org/driver-api/media/v4l2-fh.html

Signed-off-by: Samuel Holland <[email protected]>
Signed-off-by: Andrey Skvortsov <[email protected]>
Fixes: 50e761516f2b ("media: platform: Add Cedrus VPU decoder driver")
Cc: [email protected]
Acked-by: Paul Kocialkowski <[email protected]>
Signed-off-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
 drivers/staging/media/sunxi/cedrus/cedrus.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/staging/media/sunxi/cedrus/cedrus.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus.c
@@ -381,6 +381,7 @@ static int cedrus_open(struct file *file
 err_ctrls:
 	v4l2_ctrl_handler_free(&ctx->hdl);
 err_free:
+	v4l2_fh_exit(&ctx->fh);
 	kfree(ctx);
 	mutex_unlock(&dev->dev_mutex);