usb: musb: avoid null pointer dereference in debug logging
Since commit 511f3c53 (usb: gadget: udc-core: fix a regression during
gadget driver unbinding) usb_gadget_remove_driver will pass NULL for
the driver argument.
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 696e9e0..b7b8b2b 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1937,7 +1937,8 @@
stop_activity(musb, driver);
otg_set_peripheral(musb->xceiv->otg, NULL);
- dev_dbg(musb->controller, "unregistering driver %s\n", driver->function);
+ dev_dbg(musb->controller, "unregistering driver %s\n",
+ driver ? driver->function : "(removed)");
musb->is_active = 0;
musb->gadget_driver = NULL;