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Commit bbe4b3af authored by Lu Baolu's avatar Lu Baolu Committed by Joerg Roedel
Browse files

iommu/vt-d: Fix a potential memory leak 



A memory block was allocated in intel_svm_bind_mm() but never freed
in a failure path. This patch fixes this by free it to avoid memory
leakage.

Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: <stable@vger.kernel.org> # v4.4+
Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Fixes: 2f26e0a9 ('iommu/vt-d: Add basic SVM PASID support')
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent b1d03c1d

drivers/iommu/intel-svm.c

+1 −0
Original line number Diff line number Diff line
@@ -396,6 +396,7 @@ int intel_svm_bind_mm(struct device *dev, int *pasid, int flags, struct svm_dev_ 
				pasid_max - 1, GFP_KERNEL);

		if (ret < 0) {

			kfree(svm);

			kfree(sdev);

			goto out;

		}

		svm->pasid = ret;