usb: gadget: mass_storage: set msg_registered after msg registered
authorLi Jun <jun.li@nxp.com>
Fri, 14 Apr 2017 11:12:07 +0000 (19:12 +0800)
committerFelipe Balbi <felipe.balbi@linux.intel.com>
Tue, 13 Jun 2017 10:21:08 +0000 (13:21 +0300)
If there is no UDC available, the msg register will fail and this
flag will not be set, but the driver is already added into pending
driver list, then the module removal modprobe -r can not remove
the driver from the pending list.

Signed-off-by: Li Jun <jun.li@nxp.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
drivers/usb/gadget/legacy/mass_storage.c

index 125974f32f500a7e99878e2aa9ffed30a4fe4f8d..e99ab57ee3e589a5df5ed8e0c4063ff6861158fb 100644 (file)
@@ -210,7 +210,6 @@ static int msg_bind(struct usb_composite_dev *cdev)
        usb_composite_overwrite_options(cdev, &coverwrite);
        dev_info(&cdev->gadget->dev,
                 DRIVER_DESC ", version: " DRIVER_VERSION "\n");
-       set_bit(0, &msg_registered);
        return 0;
 
 fail_otg_desc:
@@ -257,7 +256,12 @@ MODULE_LICENSE("GPL");
 
 static int __init msg_init(void)
 {
-       return usb_composite_probe(&msg_driver);
+       int ret;
+
+       ret = usb_composite_probe(&msg_driver);
+       set_bit(0, &msg_registered);
+
+       return ret;
 }
 module_init(msg_init);