From: Laurent Pinchart laurent.pinchart@ideasonboard.com
[ Upstream commit 86f3daed59bceb4fa7981d85e89f63ebbae1d561 ]
Some of the .allow_link() and .drop_link() operations implementations call config_group_find_item() and then leak the reference to the returned item. Fix this by dropping those references where needed.
Signed-off-by: Laurent Pinchart laurent.pinchart@ideasonboard.com Reviewed-by: Kieran Bingham kieran.bingham@ideasonboard.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/gadget/function/uvc_configfs.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c index d7dcd39fe12cb..3803dda54666b 100644 --- a/drivers/usb/gadget/function/uvc_configfs.c +++ b/drivers/usb/gadget/function/uvc_configfs.c @@ -543,6 +543,7 @@ static int uvcg_control_class_allow_link(struct config_item *src, unlock: mutex_unlock(&opts->lock); out: + config_item_put(header); mutex_unlock(su_mutex); return ret; } @@ -584,6 +585,7 @@ static int uvcg_control_class_drop_link(struct config_item *src, unlock: mutex_unlock(&opts->lock); out: + config_item_put(header); mutex_unlock(su_mutex); return ret; } @@ -2047,6 +2049,7 @@ static int uvcg_streaming_class_allow_link(struct config_item *src, unlock: mutex_unlock(&opts->lock); out: + config_item_put(header); mutex_unlock(su_mutex); return ret; } @@ -2091,6 +2094,7 @@ static int uvcg_streaming_class_drop_link(struct config_item *src, unlock: mutex_unlock(&opts->lock); out: + config_item_put(header); mutex_unlock(su_mutex); return ret; }