[PATCH 1/4] hpsa: correct lockup detector pci_disable_device

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need to check if the device is already disabled first

Reviewed-by: Scott Benesh <scott.benesh@xxxxxxxxxxxxx>
Reviewed-by: Scott Teel <scott.teel@xxxxxxxxxxxxx>
Signed-off-by: Don Brace <don.brace@xxxxxxxxxxxxx>
---
 drivers/scsi/hpsa.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index d007ec1..798fb20 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -8456,7 +8456,8 @@ static void controller_lockup_detected(struct ctlr_info *h)
 	spin_unlock_irqrestore(&h->lock, flags);
 	dev_warn(&h->pdev->dev, "Controller lockup detected: 0x%08x after %d\n",
 			lockup_detected, h->heartbeat_sample_interval / HZ);
-	pci_disable_device(h->pdev);
+	if (pci_is_enabled(h->pdev))
+		pci_disable_device(h->pdev);
 	fail_all_outstanding_cmds(h);
 }
 

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