ntb: Fix missed call to pci_enable_msix()

Current MSI-X enablement code assumes MSI-Xs were successfully allocated in case less than requested vectors were available. That assumption is wrong, since MSI-Xs should be enabled with a repeated call to pci_enable_msix(). This update fixes this. Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Jon Mason <[email protected]>
cluon · Nov 20, 2013 · 9739047 · 9739047
1 parent 9fec60c
commit 9739047
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
@@ -1084,6 +1084,10 @@ static int ntb_setup_msix(struct ntb_device *ndev)
 			 "Only %d MSI-X vectors.  Limiting the number of queues to that number.\n",
 			 rc);
 		msix_entries = rc;
+
+		rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
+		if (rc)
+			goto err1;
 	}
 
 	for (i = 0; i < msix_entries; i++) {