rt2x00: Place mutex around USB register access

[powerpc.git] / drivers / net / wireless / rt2x00 / rt2x00usb.h

diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.h b/drivers/net/wireless/rt2x00/rt2x00usb.h
index 53282b0..2fa45c5 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00usb.h
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.h
@@ -112,6 +112,14 @@ int rt2x00usb_vendor_request_buff(struct rt2x00_dev *rt2x00dev,
                                  const u16 offset, void *buffer,
                                  const u16 buffer_length, const int timeout);
 
+/*
+ * A version of rt2x00usb_vendor_request_buff which must be called
+ * if the usb_cache_mutex is already held. */
+int rt2x00usb_vendor_req_buff_lock(struct rt2x00_dev *rt2x00dev,
+                                  const u8 request, const u8 requesttype,
+                                  const u16 offset, void *buffer,
+                                  const u16 buffer_length, const int timeout);
+
 /*
  * Simple wrapper around rt2x00usb_vendor_request to write a single
  * command to the device. Since we don't use the buffer argument we