From 69967a71ae6ebe7aace94ef15f269b8bf2b5ce1e Mon Sep 17 00:00:00 2001 From: Martin Hostettler Date: Mon, 19 Sep 2011 02:04:56 -0300 Subject: [PATCH] [media] v4l subdev: add dispatching for VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER Ioctls on the subdevs node currently don't dispatch the register access debug driver callbacks. Add the dispatching with the same security checks are for non subdev video nodes (i.e. only capable(CAP_SYS_ADMIN may call the register access ioctls). Signed-off-by: Martin Hostettler Acked-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-subdev.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/media/video/v4l2-subdev.c b/drivers/media/video/v4l2-subdev.c index b7967c9dc4ae..179e20e23fc4 100644 --- a/drivers/media/video/v4l2-subdev.c +++ b/drivers/media/video/v4l2-subdev.c @@ -173,6 +173,25 @@ static long subdev_do_ioctl(struct file *file, unsigned int cmd, void *arg) case VIDIOC_UNSUBSCRIBE_EVENT: return v4l2_subdev_call(sd, core, unsubscribe_event, vfh, arg); + +#ifdef CONFIG_VIDEO_ADV_DEBUG + case VIDIOC_DBG_G_REGISTER: + { + struct v4l2_dbg_register *p = arg; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + return v4l2_subdev_call(sd, core, g_register, p); + } + case VIDIOC_DBG_S_REGISTER: + { + struct v4l2_dbg_register *p = arg; + + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + return v4l2_subdev_call(sd, core, s_register, p); + } +#endif #if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) case VIDIOC_SUBDEV_G_FMT: { struct v4l2_subdev_format *format = arg; -- 2.30.2