diff options
| -rw-r--r-- | drivers/media/v4l2-core/v4l2-ioctl.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 46f45f0..e620387 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1145,6 +1145,30 @@ static int v4l_g_fmt(const struct v4l2_ioctl_ops *ops, p->fmt.pix.priv = V4L2_PIX_FMT_PRIV_MAGIC; + /* + * fmt can't be cleared for these overlay types due to the 'clips' + * 'clipcount' and 'bitmap' pointers in struct v4l2_window. + * Those are provided by the user. So handle these two overlay types + * first, and then just do a simple memset for the other types. + */ + switch (p->type) { + case V4L2_BUF_TYPE_VIDEO_OVERLAY: + case V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY: { + struct v4l2_clip *clips = p->fmt.win.clips; + u32 clipcount = p->fmt.win.clipcount; + void *bitmap = p->fmt.win.bitmap; + + memset(&p->fmt, 0, sizeof(p->fmt)); + p->fmt.win.clips = clips; + p->fmt.win.clipcount = clipcount; + p->fmt.win.bitmap = bitmap; + break; + } + default: + memset(&p->fmt, 0, sizeof(p->fmt)); + break; + } + switch (p->type) { case V4L2_BUF_TYPE_VIDEO_CAPTURE: if (unlikely(!is_rx || !is_vid || !ops->vidioc_g_fmt_vid_cap)) @@ -2140,7 +2164,7 @@ struct v4l2_ioctl_info { static struct v4l2_ioctl_info v4l2_ioctls[] = { IOCTL_INFO_FNC(VIDIOC_QUERYCAP, v4l_querycap, v4l_print_querycap, 0), IOCTL_INFO_FNC(VIDIOC_ENUM_FMT, v4l_enum_fmt, v4l_print_fmtdesc, INFO_FL_CLEAR(v4l2_fmtdesc, type)), - IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, INFO_FL_CLEAR(v4l2_format, type)), + IOCTL_INFO_FNC(VIDIOC_G_FMT, v4l_g_fmt, v4l_print_format, 0), IOCTL_INFO_FNC(VIDIOC_S_FMT, v4l_s_fmt, v4l_print_format, INFO_FL_PRIO), IOCTL_INFO_FNC(VIDIOC_REQBUFS, v4l_reqbufs, v4l_print_requestbuffers, INFO_FL_PRIO | INFO_FL_QUEUE), IOCTL_INFO_FNC(VIDIOC_QUERYBUF, v4l_querybuf, v4l_print_buffer, INFO_FL_QUEUE | INFO_FL_CLEAR(v4l2_buffer, length)), |
