From: Joerg Roedel <jroedel@suse.de>
Date: Mon, 2 Nov 2015 10:57:31 +0000 (+0900)
Subject: iommu/vt-d: Fix return value check of parse_ioapics_under_ir()
X-Git-Tag: firefly_0821_release~176^2~781^2^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b61e5e80e3cd37f0183cdc04b03861a0467d9f52;p=firefly-linux-kernel-4.4.55.git

iommu/vt-d: Fix return value check of parse_ioapics_under_ir()

The function returns 0 on success, so check for the right
value.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
---

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index f3a9bd1bea43..1fae1881648c 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -690,7 +690,7 @@ static int __init intel_prepare_irq_remapping(void)
 	if (!dmar_ir_support())
 		return -ENODEV;
 
-	if (!parse_ioapics_under_ir()) {
+	if (parse_ioapics_under_ir()) {
 		pr_info("Not enabling interrupt remapping\n");
 		goto error;
 	}