From 4b065060555b14c7a9b86c013a1c9bee8e8b6fbd Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Fri, 17 Sep 2021 13:49:30 +0200 Subject: [PATCH] media: uvcvideo: Fix memory leak of object map on error exit path Currently when the allocation of map->name fails the error exit path does not kfree the previously allocated object map. Fix this by setting ret to -ENOMEM and taking the free_map exit error path to ensure map is kfree'd. Addresses-Coverity: ("Resource leak") Fixes: 70fa906d6fce ("media: uvcvideo: Use control names from framework") Signed-off-by: Colin Ian King Reviewed-by: Ricardo Ribalda Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/uvc/uvc_v4l2.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/media/usb/uvc/uvc_v4l2.c b/drivers/media/usb/uvc/uvc_v4l2.c index f4e4aff8ddf7..711556d13d03 100644 --- a/drivers/media/usb/uvc/uvc_v4l2.c +++ b/drivers/media/usb/uvc/uvc_v4l2.c @@ -44,8 +44,10 @@ static int uvc_ioctl_ctrl_map(struct uvc_video_chain *chain, if (v4l2_ctrl_get_name(map->id) == NULL) { map->name = kmemdup(xmap->name, sizeof(xmap->name), GFP_KERNEL); - if (!map->name) - return -ENOMEM; + if (!map->name) { + ret = -ENOMEM; + goto free_map; + } } memcpy(map->entity, xmap->entity, sizeof(map->entity)); map->selector = xmap->selector;