From 9b4b3f6a062b22550e62523efe5213776cdd426b Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Thu, 11 Aug 2016 07:26:01 -0700
Subject: ahci: disable correct irq for dummy ports

irq already contains the interrupt number for the port, don't add the
port index to it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: d684a90d38e2 ("ahci: per-port msix support")
Cc: stable@vger.kernel.org v4.5+

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 7461a58..dcf2c72 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -2524,7 +2524,7 @@ static int ahci_host_activate_multi_irqs(struct ata_host *host,
 
 		/* Do not receive interrupts sent by dummy ports */
 		if (!pp) {
-			disable_irq(irq + i);
+			disable_irq(irq);
 			continue;
 		}
 
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