1 files changed, 25 insertions, 37 deletions

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index 7593b7c1d33..e90a3742f09 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -1219,7 +1219,7 @@ bfad_install_msix_handler(struct bfad_s *bfad)
 int
 bfad_setup_intr(struct bfad_s *bfad)
 {
-	int error = 0;
+	int error;
 	u32 mask = 0, i, num_bit = 0, max_bit = 0;
 	struct msix_entry msix_entries[MAX_MSIX_ENTRY];
 	struct pci_dev *pdev = bfad->pcidev;
@@ -1234,34 +1234,24 @@ bfad_setup_intr(struct bfad_s *bfad)
 	if ((bfa_asic_id_ctc(pdev->device) && !msix_disable_ct) ||
 	   (bfa_asic_id_cb(pdev->device) && !msix_disable_cb)) {
 
-		error = pci_enable_msix(bfad->pcidev, msix_entries, bfad->nvec);
-		if (error) {
-			/* In CT1 & CT2, try to allocate just one vector */
-			if (bfa_asic_id_ctc(pdev->device)) {
-				printk(KERN_WARNING "bfa %s: trying one msix "
-				       "vector failed to allocate %d[%d]\n",
-				       bfad->pci_name, bfad->nvec, error);
-				bfad->nvec = 1;
-				error = pci_enable_msix(bfad->pcidev,
-						msix_entries, bfad->nvec);
-			}
+		error = pci_enable_msix_exact(bfad->pcidev,
+					      msix_entries, bfad->nvec);
+		/* In CT1 & CT2, try to allocate just one vector */
+		if (error == -ENOSPC && bfa_asic_id_ctc(pdev->device)) {
+			printk(KERN_WARNING "bfa %s: trying one msix "
+			       "vector failed to allocate %d[%d]\n",
+			       bfad->pci_name, bfad->nvec, error);
+			bfad->nvec = 1;
+			error = pci_enable_msix_exact(bfad->pcidev,
+						      msix_entries, 1);
+		}
 
-			/*
-			 * Only error number of vector is available.
-			 * We don't have a mechanism to map multiple
-			 * interrupts into one vector, so even if we
-			 * can try to request less vectors, we don't
-			 * know how to associate interrupt events to
-			 *  vectors. Linux doesn't duplicate vectors
-			 * in the MSIX table for this case.
-			 */
-			if (error) {
-				printk(KERN_WARNING "bfad%d: "
-				       "pci_enable_msix failed (%d), "
-				       "use line based.\n",
-					bfad->inst_no, error);
-				goto line_based;
-			}
+		if (error) {
+			printk(KERN_WARNING "bfad%d: "
+			       "pci_enable_msix_exact failed (%d), "
+			       "use line based.\n",
+				bfad->inst_no, error);
+			goto line_based;
 		}
 
 		/* Disable INTX in MSI-X mode */
@@ -1281,20 +1271,18 @@ bfad_setup_intr(struct bfad_s *bfad)
 
 		bfad->bfad_flags |= BFAD_MSIX_ON;
 
-		return error;
+		return 0;
 	}
 
 line_based:
-	error = 0;
-	if (request_irq
-	    (bfad->pcidev->irq, (irq_handler_t) bfad_intx, BFAD_IRQ_FLAGS,
-	     BFAD_DRIVER_NAME, bfad) != 0) {
-		/* Enable interrupt handler failed */
-		return 1;
-	}
+	error = request_irq(bfad->pcidev->irq, (irq_handler_t)bfad_intx,
+			    BFAD_IRQ_FLAGS, BFAD_DRIVER_NAME, bfad);
+	if (error)
+		return error;
+
 	bfad->bfad_flags |= BFAD_INTX_ON;
 
-	return error;
+	return 0;
 }
 
 void