From 86f3daed59bceb4fa7981d85e89f63ebbae1d561 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 2 Aug 2018 00:14:00 +0300 Subject: [PATCH] usb: gadget: uvc: configfs: Drop leaked references to config items 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 Reviewed-by: Kieran Bingham --- 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 dbc95c9558de..8d513cc6fb8c 100644 --- a/drivers/usb/gadget/function/uvc_configfs.c +++ b/drivers/usb/gadget/function/uvc_configfs.c @@ -529,6 +529,7 @@ 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; } @@ -564,6 +565,7 @@ static void uvcg_control_class_drop_link(struct config_item *src, unlock: mutex_unlock(&opts->lock); out: + config_item_put(header); mutex_unlock(su_mutex); } @@ -2026,6 +2028,7 @@ 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; } @@ -2066,6 +2069,7 @@ static void uvcg_streaming_class_drop_link(struct config_item *src, unlock: mutex_unlock(&opts->lock); out: + config_item_put(header); mutex_unlock(su_mutex); }