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path: root/drivers/media/usb/uvc/uvc_ctrl.c
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Diffstat (limited to 'drivers/media/usb/uvc/uvc_ctrl.c')
-rw-r--r--drivers/media/usb/uvc/uvc_ctrl.c19
1 files changed, 8 insertions, 11 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,
1061 1061
1062 ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping); 1062 ctrl = uvc_find_control(chain, v4l2_ctrl->id, &mapping);
1063 if (ctrl == NULL) { 1063 if (ctrl == NULL) {
1064 ret = -ENOENT; 1064 ret = -EINVAL;
1065 goto done; 1065 goto done;
1066 } 1066 }
1067 1067
@@ -1099,13 +1099,12 @@ int uvc_query_v4l2_menu(struct uvc_video_chain *chain,
1099 return -ERESTARTSYS; 1099 return -ERESTARTSYS;
1100 1100
1101 ctrl = uvc_find_control(chain, query_menu->id, &mapping); 1101 ctrl = uvc_find_control(chain, query_menu->id, &mapping);
1102 if (ctrl == NULL) { 1102 if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU) {
1103 ret = -ENOENT; 1103 ret = -EINVAL;
1104 goto done; 1104 goto done;
1105 } 1105 }
1106 1106
1107 if (mapping->v4l2_type != V4L2_CTRL_TYPE_MENU || 1107 if (query_menu->index >= mapping->menu_count) {
1108 query_menu->index >= mapping->menu_count) {
1109 ret = -EINVAL; 1108 ret = -EINVAL;
1110 goto done; 1109 goto done;
1111 } 1110 }
@@ -1264,7 +1263,7 @@ static int uvc_ctrl_add_event(struct v4l2_subscribed_event *sev, unsigned elems)
1264 1263
1265 ctrl = uvc_find_control(handle->chain, sev->id, &mapping); 1264 ctrl = uvc_find_control(handle->chain, sev->id, &mapping);
1266 if (ctrl == NULL) { 1265 if (ctrl == NULL) {
1267 ret = -ENOENT; 1266 ret = -EINVAL;
1268 goto done; 1267 goto done;
1269 } 1268 }
1270 1269
@@ -1415,7 +1414,7 @@ int uvc_ctrl_get(struct uvc_video_chain *chain,
1415 1414
1416 ctrl = uvc_find_control(chain, xctrl->id, &mapping); 1415 ctrl = uvc_find_control(chain, xctrl->id, &mapping);
1417 if (ctrl == NULL) 1416 if (ctrl == NULL)
1418 return -ENOENT; 1417 return -EINVAL;
1419 1418
1420 return __uvc_ctrl_get(chain, ctrl, mapping, &xctrl->value); 1419 return __uvc_ctrl_get(chain, ctrl, mapping, &xctrl->value);
1421} 1420}
@@ -1432,10 +1431,8 @@ int uvc_ctrl_set(struct uvc_video_chain *chain,
1432 int ret; 1431 int ret;
1433 1432
1434 ctrl = uvc_find_control(chain, xctrl->id, &mapping); 1433 ctrl = uvc_find_control(chain, xctrl->id, &mapping);
1435 if (ctrl == NULL) 1434 if (ctrl == NULL || (ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR) == 0)
1436 return -ENOENT; 1435 return -EINVAL;
1437 if (!(ctrl->info.flags & UVC_CTRL_FLAG_SET_CUR))
1438 return -EACCES;
1439 1436
1440 /* Clamp out of range values. */ 1437 /* Clamp out of range values. */
1441 switch (mapping->v4l2_type) { 1438 switch (mapping->v4l2_type) {