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 <benoit@android.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index e51b2314f5c9..a8b8ab80bc77 100644
--- 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) {