- freq = (freq/16*80)/1000+856;
- if (usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
- DSB100_TUNE,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- (freq>>8)&0x00ff, freq&0xff,
- radio->transfer_buffer, 8, 300)<0 ||
- usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
- USB_REQ_GET_STATUS,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0x96, 0xB7, radio->transfer_buffer, 8, 300)<0 ||
- usb_control_msg(radio->usbdev, usb_rcvctrlpipe(radio->usbdev, 0),
- USB_REQ_GET_STATUS,
- USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
- 0x00, 0x24, radio->transfer_buffer, 8, 300)<0) {
- radio->stereo = -1;
- return -1;
+ int retval;
+ int request;
+
+ freq = (freq / 16 * 80) / 1000 + 856;
+ mutex_lock(&radio->lock);
+
+ retval = usb_control_msg(radio->usbdev,
+ usb_rcvctrlpipe(radio->usbdev, 0),
+ DSB100_TUNE,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ (freq >> 8) & 0x00ff, freq & 0xff,
+ radio->transfer_buffer, 8, 300);
+
+ if (retval < 0) {
+ request = DSB100_TUNE;
+ goto usb_control_msg_failed;
+ }
+
+ retval = usb_control_msg(radio->usbdev,
+ usb_rcvctrlpipe(radio->usbdev, 0),
+ USB_REQ_GET_STATUS,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x96, 0xB7, radio->transfer_buffer, 8, 300);
+
+ if (retval < 0) {
+ request = USB_REQ_GET_STATUS;
+ goto usb_control_msg_failed;
+ }
+
+ retval = usb_control_msg(radio->usbdev,
+ usb_rcvctrlpipe(radio->usbdev, 0),
+ USB_REQ_GET_STATUS,
+ USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+ 0x00, 0x24, radio->transfer_buffer, 8, 300);
+
+ if (retval < 0) {
+ request = USB_REQ_GET_STATUS;
+ goto usb_control_msg_failed;