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-rw-r--r--drivers/media/usb/uvc/uvc_ctrl.c19
-rw-r--r--drivers/media/usb/uvc/uvc_v4l2.c12
2 files changed, 13 insertions, 18 deletions
diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index 516a5b188ea5..2bb7613ddebb 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -1061,7 +1061,7 @@ int uvc_query_v4l2_ctrl(struct uvc_video_chain *chain,
ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping);
if (ctrl == NULL) {
- ret = -ENOENT;
+ ret = -EINVAL;
goto done;
}
@@ -1099,13 +1099,12 @@ int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
return -ERESTARTSYS;
ctrl = uvc_find_control(chain, query_menu->id, &mapping);
- if (ctrl == NULL) {
- ret = -ENOENT;
+ if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) {
+ ret = -EINVAL;
goto done;
}
- if (mapping->v4l2_type != V4L2_CTRL_TYPE_MENU ||
- query_menu->index >= mapping->menu_count) {
+ if (query_menu->index >= mapping->menu_count) {
ret = -EINVAL;
goto done;
}
@@ -1264,7 +1263,7 @@ static int uvc_ctrl_add_event(struct v4l2_subscribed_event *sev, unsigned elems)
ctrl = uvc_find_control(handle->chain, sev->id, &mapping);
if (ctrl == NULL) {
- ret = -ENOENT;
+ ret = -EINVAL;
goto done;
}
@@ -1415,7 +1414,7 @@ int uvc_ctrl_get(struct uvc_video_chain *chain,
ctrl = uvc_find_control(chain, xctrl->id, &mapping);
if (ctrl == NULL)
- return -ENOENT;
+ return -EINVAL;
return __uvc_ctrl_get(chain, ctrl, mapping, &xctrl->value);
}
@@ -1432,10 +1431,8 @@ int uvc_ctrl_set(struct uvc_video_chain *chain,
int ret;
ctrl = uvc_find_control(chain, xctrl->id, &mapping);
- if (ctrl == NULL)
- return -ENOENT;
- if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR))
- return -EACCES;
+ if (ctrl == NULL || (ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR) == 0)
+ return -EINVAL;
/* Clamp out of range values. */
switch (mapping->v4l2_type) {
diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c
index 8e056046bc20..f2ee8c6b0d8d 100644
--- a/drivers/media/usb/uvc/uvc_v4l2.c
+++ b/drivers/media/usb/uvc/uvc_v4l2.c
@@ -607,10 +607,8 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
ret = uvc_ctrl_get(chain, &xctrl);
uvc_ctrl_rollback(handle);
- if (ret < 0)
- return ret == -ENOENT ? -EINVAL : ret;
-
- ctrl->value = xctrl.value;
+ if (ret >= 0)
+ ctrl->value = xctrl.value;
break;
}
@@ -634,7 +632,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
ret = uvc_ctrl_set(chain, &xctrl);
if (ret < 0) {
uvc_ctrl_rollback(handle);
- return ret == -ENOENT ? -EINVAL : ret;
+ return ret;
}
ret = uvc_ctrl_commit(handle, &xctrl, 1);
if (ret == 0)
@@ -661,7 +659,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
uvc_ctrl_rollback(handle);
ctrls->error_idx = ret == -ENOENT
? ctrls->count : i;
- return ret == -ENOENT ? -EINVAL : ret;
+ return ret;
}
}
ctrls->error_idx = 0;
@@ -691,7 +689,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
ctrls->error_idx = (ret == -ENOENT &&
cmd == VIDIOC_S_EXT_CTRLS)
? ctrls->count : i;
- return ret == -ENOENT ? -EINVAL : ret;
+ return ret;
}
}