[PATCH 4.4 15/30] usb: core: fix potential memory leak in error path during hcd creation

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Anton Bondarenko <anton.bondarenko.sama@gmail.com>

commit 1a744d2eb76aaafb997fda004ae3ae62a1538f85 upstream.

Free memory allocated for address0_mutex if allocation of bandwidth_mutex
failed.

Fixes: feb26ac31a2a ("usb: core: hub: hub_port_init lock controller instead of bus")

Signed-off-by: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/core/hcd.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2511,6 +2511,7 @@ struct usb_hcd *usb_create_shared_hcd(co
 		hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex),
 				GFP_KERNEL);
 		if (!hcd->bandwidth_mutex) {
+			kfree(hcd->address0_mutex);
 			kfree(hcd);
 			dev_dbg(dev, "hcd bandwidth mutex alloc failed\n");
 			return NULL;