diff options
| -rw-r--r-- | drivers/media/usb/uvc/uvc_ctrl.c | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index 65d41946ef1a..ffa0e2654264 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -2286,32 +2286,30 @@ static int __uvc_ctrl_add_mapping(struct uvc_video_chain *chain, unsigned int i; /* - * Most mappings come from static kernel data and need to be duplicated. + * Most mappings come from static kernel data, and need to be duplicated. * Mappings that come from userspace will be unnecessarily duplicated, * this could be optimized. */ map = kmemdup(mapping, sizeof(*mapping), GFP_KERNEL); - if (map == NULL) + if (!map) return -ENOMEM; + map->name = NULL; + map->menu_info = NULL; + /* For UVCIOC_CTRL_MAP custom control */ if (mapping->name) { map->name = kstrdup(mapping->name, GFP_KERNEL); - if (!map->name) { - kfree(map); - return -ENOMEM; - } + if (!map->name) + goto err_nomem; } INIT_LIST_HEAD(&map->ev_subs); size = sizeof(*mapping->menu_info) * mapping->menu_count; map->menu_info = kmemdup(mapping->menu_info, size, GFP_KERNEL); - if (map->menu_info == NULL) { - kfree(map->name); - kfree(map); - return -ENOMEM; - } + if (!map->menu_info) + goto err_nomem; if (map->get == NULL) map->get = uvc_get_le_value; @@ -2332,6 +2330,12 @@ static int __uvc_ctrl_add_mapping(struct uvc_video_chain *chain, ctrl->info.selector); return 0; + +err_nomem: + kfree(map->menu_info); + kfree(map->name); + kfree(map); + return -ENOMEM; } int uvc_ctrl_add_mapping(struct uvc_video_chain *chain, |