IB/ipath: Don't try to handle freeze mode HW errors if diagnostic mode

Don't try to handle freeze mode HW errors if the driver is in diagnostic
mode since some tests can cause errors that shouldn't be processed.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/ipath/ipath_iba6120.c

@@ -481,7 +481,7 @@ static void ipath_pe_handle_hwerrors(struct ipath_devdata *dd, char *msg,
 			      (hwerrs & ~dd->ipath_hwe_bitsextant));
 
 	ctrl = ipath_read_kreg32(dd, dd->ipath_kregs->kr_control);
-	if (ctrl & INFINIPATH_C_FREEZEMODE) {
+	if ((ctrl & INFINIPATH_C_FREEZEMODE) && !ipath_diag_inuse) {
 		/*
 		 * parity errors in send memory are recoverable,
 		 * just cancel the send (if indicated in * sendbuffererror),