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From: vivek.gautam@codeaurora.org (Vivek Gautam)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V4 1/6] iommu/arm-smmu: Fix the error path in arm_smmu_add_device
Date: Thu,  6 Jul 2017 15:07:00 +0530	[thread overview]
Message-ID: <1499333825-7658-2-git-send-email-vivek.gautam@codeaurora.org> (raw)
In-Reply-To: <1499333825-7658-1-git-send-email-vivek.gautam@codeaurora.org>

fwspec->iommu_priv is available only after arm_smmu_master_cfg
instance has been allocated. We shouldn't free it before that.
Also it's logical to free the master cfg itself without
checking for fwspec.

Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
---
 drivers/iommu/arm-smmu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 9a45117d90de..61b1f8729a7c 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1349,15 +1349,15 @@ static int arm_smmu_add_device(struct device *dev)
 
 	ret = arm_smmu_master_alloc_smes(dev);
 	if (ret)
-		goto out_free;
+		goto out_cfg_free;
 
 	iommu_device_link(&smmu->iommu, dev);
 
 	return 0;
 
+out_cfg_free:
+	kfree(cfg);
 out_free:
-	if (fwspec)
-		kfree(fwspec->iommu_priv);
 	iommu_fwspec_free(dev);
 	return ret;
 }
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

  reply	other threads:[~2017-07-06  9:37 UTC|newest]

Thread overview: 53+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-06  9:36 [PATCH V4 0/6] iommu/arm-smmu: Add runtime pm/sleep support Vivek Gautam
2017-07-06  9:37 ` Vivek Gautam [this message]
2017-07-06  9:37 ` [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops Vivek Gautam
2017-07-12 22:58   ` Stephen Boyd
2017-07-12 23:01     ` Stephen Boyd
2017-07-13  3:57       ` Vivek Gautam
2017-07-06  9:37 ` [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device Vivek Gautam
2017-07-12 22:54   ` Stephen Boyd
2017-07-13  5:13     ` Vivek Gautam
2017-07-13  5:35       ` Sricharan R
2017-07-13 11:50         ` Rob Clark
2017-07-13 12:02           ` Marek Szyprowski
2017-07-13 12:10             ` Rob Clark
2017-07-13 12:23               ` Marek Szyprowski
2017-07-13 13:53           ` Sricharan R
2017-07-13 14:55             ` Rob Clark
2017-07-14 17:07               ` Will Deacon
2017-07-14 17:42                 ` Rob Clark
2017-07-14 18:06                   ` Will Deacon
2017-07-14 18:25                     ` Rob Clark
2017-07-14 19:01                       ` Will Deacon
2017-07-14 19:34                         ` Rob Clark
2017-07-14 19:36                           ` Will Deacon
2017-07-14 19:39                             ` Rob Clark
2017-07-17 11:46                               ` Sricharan R
2017-07-17 12:28                                 ` Sricharan R
2017-07-24 15:31                                   ` Vivek Gautam
2017-08-02  9:53                                     ` [PATCH] iommu/arm-smmu: Defer TLB flush in case of unmap op Vivek Gautam
2017-08-02 12:17                                       ` Robin Murphy
2017-08-03  5:35                                         ` Vivek Gautam
2017-08-04 17:04                                           ` Robin Murphy
2017-08-07  7:44                                             ` Vivek Gautam
2017-08-07  8:27           ` [PATCH V4 3/6] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device Vivek Gautam
2017-08-07 12:29             ` Rob Clark
2017-11-14 18:30               ` Vivek Gautam
2017-11-27 22:22                 ` Stephen Boyd
2017-11-27 23:43                   ` Rob Clark
2017-11-28 13:43                     ` Vivek Gautam
2017-11-28 20:05                       ` Rob Clark
2017-07-13 13:57         ` Vivek Gautam
2017-07-13 14:01           ` Vivek Gautam
2017-07-13  6:48       ` Stephen Boyd
2017-07-13  9:50         ` Robin Murphy
2017-07-13 11:53           ` Rob Clark
2017-07-06  9:37 ` [PATCH V4 4/6] iommu/arm-smmu: Add the device_link between masters and smmu Vivek Gautam
2017-07-12 22:55   ` Stephen Boyd
2017-07-13  3:59     ` Vivek Gautam
2017-07-06  9:37 ` [PATCH V4 5/6] iommu/arm-smmu: Add support for MMU40x/500 clocks Vivek Gautam
2017-07-10  3:37   ` Rob Herring
2017-07-11  5:18     ` Vivek Gautam
2017-07-06  9:37 ` [PATCH V4 6/6] iommu/arm-smmu: Add support for qcom, msm8996-smmu-v2 clocks Vivek Gautam
2017-07-10  3:40   ` [PATCH V4 6/6] iommu/arm-smmu: Add support for qcom,msm8996-smmu-v2 clocks Rob Herring
2017-07-10  6:42     ` Vivek Gautam

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