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Date: Thu, 10 Jul 2014 15:25:46 +0200 From: Joerg Roedel <joro@...tes.org> To: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org Cc: Oded.Gabbay@....com, Joerg Roedel <jroedel@...e.de> Subject: [PATCH 5/9] iommu/amd: Drop pasid_state reference in ppr_notifer error path From: Joerg Roedel <jroedel@...e.de> In case we are not able to allocate a fault structure a reference to the pasid_state will be leaked. Fix that by dropping the reference in the error path in case we hold one. Signed-off-by: Joerg Roedel <jroedel@...e.de> Tested-by: Oded Gabbay <Oded.Gabbay@....com> --- drivers/iommu/amd_iommu_v2.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c index 574c71b..6ba707b 100644 --- a/drivers/iommu/amd_iommu_v2.c +++ b/drivers/iommu/amd_iommu_v2.c @@ -607,6 +607,10 @@ static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data) ret = NOTIFY_OK; out_drop_state: + + if (ret != NOTIFY_OK && pasid_state) + put_pasid_state(pasid_state); + put_device_state(dev_state); out: -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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