[media] v4l: ti-vpe: Use video_device_release_empty

The video_device struct is currently embedded in the driver data struct vpe_dev.
A vpe_dev instance is allocated by the driver, and the memory for the vfd is a
part of this struct.

The v4l2 core, however, manages the removal of the vfd region, through the
video_device's .release() op, which currently is the helper
video_device_release. This causes memory corruption, and leads to issues when
we try to re-insert the vpe module.

Use the video_device_release_empty helper function instead.

Reviewed-by: Hans Verkuil <[email protected]>
Signed-off-by: Archit Taneja <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index f3143ac424a740f122c67c467ae6a7aeebe6c268..578c0c637e2ce3dd13a27dda1e13b5c4c47d262e 100644 (file)
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -2005,7 +2005,7 @@ static struct video_device vpe_videodev = {
        .fops           = &vpe_fops,
        .ioctl_ops      = &vpe_ioctl_ops,
        .minor          = -1,
-       .release        = video_device_release,
+       .release        = video_device_release_empty,
        .vfl_dir        = VFL_DIR_M2M,
 };