linux-kernel - [PATCH v3 03/13] megaraid: Fail resume if MSI-X re-initialization failed

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Message-Id: <674297e21ea4fc03f08694c1dd830d9113dd7965.1408335523.git.agordeev@redhat.com>
Date:	Mon, 18 Aug 2014 08:01:43 +0200
From:	Alexander Gordeev <agordeev@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Alexander Gordeev <agordeev@...hat.com>,
	Neela Syam Kolli <megaraidlinux@....com>,
	linux-scsi@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH v3 03/13] megaraid: Fail resume if MSI-X re-initialization failed

Currently the driver fails to analize MSI-X re-enablement
status on resuming and always assumes the success. This
update checks the MSI-X initialization result and fails
to resume if MSI-Xs re-enablement failed.

Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
Acked-by: Kashyap Desai <Kashyap.desai@...gotech.com>
Cc: Neela Syam Kolli <megaraidlinux@....com>
Cc: linux-scsi@...r.kernel.org
Cc: linux-pci@...r.kernel.org
---
 drivers/scsi/megaraid/megaraid_sas_base.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 22a04e3..e4ffae5 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -5132,9 +5132,10 @@ megasas_resume(struct pci_dev *pdev)
 		goto fail_ready_state;
 
 	/* Now re-enable MSI-X */
-	if (instance->msix_vectors)
-		pci_enable_msix(instance->pdev, instance->msixentry,
-				instance->msix_vectors);
+	if (instance->msix_vectors &&
+	    pci_enable_msix(instance->pdev, instance->msixentry,
+			    instance->msix_vectors))
+		goto fail_reenable_msix;
 
 	switch (instance->pdev->device) {
 	case PCI_DEVICE_ID_LSI_FUSION:
@@ -5243,6 +5244,7 @@ fail_init_mfi:
 
 fail_set_dma_mask:
 fail_ready_state:
+fail_reenable_msix:
 
 	pci_disable_device(pdev);
 
-- 
1.9.3

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