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-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index fc7ac158476..d7b99843ca3 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -198,6 +198,9 @@ megasas_clear_intr_xscale(struct megasas_register_set __iomem * regs)
*/
writel(status, &regs->outbound_intr_status);
+ /* Dummy readl to force pci flush */
+ readl(&regs->outbound_intr_status);
+
return 0;
}
@@ -293,6 +296,9 @@ megasas_clear_intr_ppc(struct megasas_register_set __iomem * regs)
*/
writel(status, &regs->outbound_doorbell_clear);
+ /* Dummy readl to force pci flush */
+ readl(&regs->outbound_doorbell_clear);
+
return 0;
}
/**