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authorJulia Lawall <Julia.Lawall@lip6.fr>2012-07-08 15:37:42 +0400
committerJoerg Roedel <joerg.roedel@amd.com>2012-08-03 18:04:12 +0400
commit9579a974d1018c7f1d42455c29aa3f0d512c99fe (patch)
tree134c2eae9ef5b1ab3b6ea74d8932faed4fa2d432 /drivers/iommu
parent0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff)
downloadlinux-9579a974d1018c7f1d42455c29aa3f0d512c99fe.tar.xz
iommu/tegra: remove invalid reference to list iterator variable
If list_for_each_entry, etc complete a traversal of the list, the iterator variable ends up pointing to an address at an offset from the list head, and not a meaningful structure. Thus this value should not be used after the end of the iterator. Replace c->dev by dev, which is the value that c->dev has been compared to. This problem was found using Coccinelle (http://coccinelle.lip6.fr/). Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Hiroshi DOYU <hdoyu@nvidia.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/tegra-smmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 4ba325ab6262..a9bf4c30cd84 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -799,7 +799,7 @@ static void smmu_iommu_detach_dev(struct iommu_domain *domain,
goto out;
}
}
- dev_err(smmu->dev, "Couldn't find %s\n", dev_name(c->dev));
+ dev_err(smmu->dev, "Couldn't find %s\n", dev_name(dev));
out:
spin_unlock(&as->client_lock);
}