USB: janitor storage initializers
authorPete Zaitcev <zaitcev@redhat.com>
Wed, 29 Apr 2009 22:02:18 +0000 (16:02 -0600)
committerGreg Kroah-Hartman <gregkh@suse.de>
Tue, 16 Jun 2009 04:44:44 +0000 (21:44 -0700)
We all know that pointless janitoring is bad, but this code is just
offensive. So:

- The error code goes directly to probe return, so don't return -1.
- Don't return return internal usb-storage codes either.
- usb_stor_control_msg takes timeout in milliseconds.
- Sanitize messages.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/usb/storage/initializers.c

index 2dd9bd4..ec17c96 100644 (file)
@@ -52,7 +52,7 @@ int usb_stor_euscsi_init(struct us_data *us)
        us->iobuf[0] = 0x1;
        result = usb_stor_control_msg(us, us->send_ctrl_pipe,
                        0x0C, USB_RECIP_INTERFACE | USB_TYPE_VENDOR,
-                       0x01, 0x0, us->iobuf, 0x1, 5*HZ);
+                       0x01, 0x0, us->iobuf, 0x1, 5000);
        US_DEBUGP("-- result is %d\n", result);
 
        return 0;
@@ -80,14 +80,16 @@ int usb_stor_ucr61s2b_init(struct us_data *us)
 
        res = usb_stor_bulk_transfer_buf(us, us->send_bulk_pipe, bcb,
                        US_BULK_CB_WRAP_LEN, &partial);
-       if(res)
-               return res;
+       if (res)
+               return -EIO;
 
        US_DEBUGP("Getting status packet...\n");
        res = usb_stor_bulk_transfer_buf(us, us->recv_bulk_pipe, bcs,
                        US_BULK_CS_WRAP_LEN, &partial);
+       if (res)
+               return -EIO;
 
-       return (res ? -1 : 0);
+       return 0;
 }
 
 /* This places the HUAWEI E220 devices in multi-port mode */
@@ -99,6 +101,6 @@ int usb_stor_huawei_e220_init(struct us_data *us)
                                      USB_REQ_SET_FEATURE,
                                      USB_TYPE_STANDARD | USB_RECIP_DEVICE,
                                      0x01, 0x0, NULL, 0x0, 1000);
-       US_DEBUGP("usb_control_msg performing result is %d\n", result);
-       return (result ? 0 : -1);
+       US_DEBUGP("Huawei mode set result is %d\n", result);
+       return (result ? 0 : -ENODEV);
 }