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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2018-08-02 00:14:00 +0300
committerLaurent Pinchart <laurent.pinchart@ideasonboard.com>2018-09-24 18:54:13 +0300
commit86f3daed59bceb4fa7981d85e89f63ebbae1d561 (patch)
tree6f506e44cfac3b0c8155120d37987bce03cb6d84
parentf7d8109e31bbe785b13c8cfdafc56e9351bccef1 (diff)
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 <laurent.pinchart@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
-rw-r--r--drivers/usb/gadget/function/uvc_configfs.c4
1 files changed, 4 insertions, 0 deletions
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);
}