From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 20 May 2014 12:37:52 +0000 (+0800)
Subject: iommu/vt-d: Fix reference count in iommu_prepare_isa
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9b27e82d208b85ee9c3146693bb1e92f9ade4468;p=deliverable%2Flinux.git

iommu/vt-d: Fix reference count in iommu_prepare_isa

Decrease the device reference count avoid memory leak.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 219c2c51a312..9b9f28ea3db2 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -2403,6 +2403,7 @@ static inline void iommu_prepare_isa(void)
 		printk(KERN_ERR "IOMMU: Failed to create 0-16MiB identity map; "
 		       "floppy might not work\n");
 
+	pci_dev_put(pdev);
 }
 #else
 static inline void iommu_prepare_isa(void)