megaraid_sas: disable interrupt_mask before enabling hardware interrupts

Update driver "mask_interrupts" before enable/disable hardware interrupt in order to avoid missing interrupts because of "mask_interrupts" still set to 1 and hardware interrupts are enabled. Cc: <[email protected]> Signed-off-by: Sumit Saxena <[email protected]> Signed-off-by: Chaitra Basappa <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]>
vieko · Jan 9, 2015 · c2ced17 · c2ced17
1 parent ab2f060
commit c2ced17
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -102,6 +102,8 @@ megasas_enable_intr_fusion(struct megasas_instance *instance)
 {
 	struct megasas_register_set __iomem *regs;
 	regs = instance->reg_set;
+
+	instance->mask_interrupts = 0;
 	/* For Thunderbolt/Invader also clear intr on enable */
 	writel(~0, &regs->outbound_intr_status);
 	readl(&regs->outbound_intr_status);
@@ -110,7 +112,6 @@ megasas_enable_intr_fusion(struct megasas_instance *instance)
 
 	/* Dummy readl to force pci flush */
 	readl(&regs->outbound_intr_mask);
-	instance->mask_interrupts = 0;
 }
 
 /**