zd1201: do not use stack as URB transfer_buffer

Patch fixes zd1201 not to use stack as URB transfer_buffer. URB buffers need to be DMA-able, which stack is not. Patch is only compile tested. Cc: [email protected] Signed-off-by: Jussi Kivilinna <[email protected]> Signed-off-by: John W. Linville <[email protected]>
soumdtt · Aug 9, 2013 · 1206ff4 · 1206ff4
1 parent 4fec06a
commit 1206ff4
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
@@ -98,10 +98,12 @@ static int zd1201_fw_upload(struct usb_device *dev, int apfw)
 		goto exit;
 
 	err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
-	    USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
+	    USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT);
 	if (err < 0)
 		goto exit;
 
+	memcpy(&ret, buf, sizeof(ret));
+
 	if (ret & 0x80) {
 		err = -EIO;
 		goto exit;