[PATCH 4.9 47/94] scsi: megaraid_sas: Update controller info during resume

[Greg Kroah-Hartman]

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Shivasharan S <shivasharan.srikanteshwara@xxxxxxxxxxxx>

[ Upstream commit c3b10a55abc943a526aaecd7e860b15671beb906 ]

There is a possibility that firmware on the controller was upgraded before
system was suspended. During resume, driver needs to read updated
controller properties.

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/scsi/megaraid/megaraid_sas_base.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -6193,6 +6193,9 @@ megasas_resume(struct pci_dev *pdev)
 			goto fail_init_mfi;
 	}
 
+	if (megasas_get_ctrl_info(instance) != DCMD_SUCCESS)
+		goto fail_init_mfi;
+
 	tasklet_init(&instance->isr_tasklet, instance->instancet->tasklet,
 		     (unsigned long)instance);