USB: c67x00-ll-hpi.c: signedness bug in ll_recv_msg()

The callers expect this function to return zero on success or -EIO if it
times out.  The type should be int instead of unsigned short.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/c67x00/c67x00-ll-hpi.c b/drivers/usb/c67x00/c67x00-ll-hpi.c
index a9636f4..3a1ca4d 100644
--- a/drivers/usb/c67x00/c67x00-ll-hpi.c
+++ b/drivers/usb/c67x00/c67x00-ll-hpi.c
@@ -237,7 +237,7 @@
 /* -------------------------------------------------------------------------- */
 /* Transactions */
 
-static inline u16 ll_recv_msg(struct c67x00_device *dev)
+static inline int ll_recv_msg(struct c67x00_device *dev)
 {
 	u16 res;