usb: gadget: composite: Initialize config->interface

Reset config->interface in usb_add_config, as it may contain pointers to
functions from a previous session if config is removed and re-added.

Signed-off-by: Benoit Goby <[email protected]>
Signed-off-by: Andrzej Pietrasiewicz <[email protected]>
Signed-off-by: Kyungmin Park <[email protected]>
Acked-by: Michal Nazarewicz <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index e51b2314f5c9d433039ef03aed4b1c2fdf3263e2..a8b8ab80bc774a56e727207457bb4da88257c250 100644 (file)
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -734,6 +734,7 @@ int usb_add_config(struct usb_composite_dev *cdev,
 
        INIT_LIST_HEAD(&config->functions);
        config->next_interface_id = 0;
+       memset(config->interface, 0, sizeof(config->interface));
 
        status = bind(config);
        if (status < 0) {