diff options
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index dc85d3e0ffe5..258e2a87c5ea 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -42,31 +42,27 @@ int rt2x00usb_vendor_request(struct rt2x00_dev *rt2x00dev, { struct usb_device *usb_dev = to_usb_device_intf(rt2x00dev->dev); int status; - unsigned int i; unsigned int pipe = (requesttype == USB_VENDOR_REQUEST_IN) ? usb_rcvctrlpipe(usb_dev, 0) : usb_sndctrlpipe(usb_dev, 0); + unsigned long expire = jiffies + msecs_to_jiffies(timeout); if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags)) return -ENODEV; - for (i = 0; i < REGISTER_BUSY_COUNT; i++) { + do { status = usb_control_msg(usb_dev, pipe, request, requesttype, value, offset, buffer, buffer_length, - timeout); + timeout / 2); if (status >= 0) return 0; - /* - * Check for errors - * -ENODEV: Device has disappeared, no point continuing. - * All other errors: Try again. - */ - else if (status == -ENODEV) { + if (status == -ENODEV) { + /* Device has disappeared. */ clear_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags); break; } - } + } while (time_before(jiffies, expire)); /* If the port is powered down, we get a -EPROTO error, and this * leads to a endless loop. So just say that the device is gone. |