usb: gadget: configs: plug memory leak

[ Upstream commit 38355b2a44776c25b0f2ad466e8c51bb805b3032 ]

When binding a gadget to a device, "name" is stored in gi->udc_name, but
this does not happen when unregistering and the string is leaked.

Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 163d305..6abb6a1 100644 (file)
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -270,6 +270,7 @@ static ssize_t gadget_dev_desc_UDC_store(struct config_item *item,
                ret = unregister_gadget(gi);
                if (ret)
                        goto err;
+               kfree(name);
        } else {
                if (gi->udc_name) {
                        ret = -EBUSY;