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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2013-12-17 17:18:49 (GMT)
committerJoerg Roedel <joro@8bytes.org>2014-01-07 14:35:25 (GMT)
commitdc89f797abdbfc58dfb28af944f80f0299a8fafa (patch)
tree93b68a13f9026fa2bf3abda3fcf11ff749f23f0d /drivers/iommu
parent78a2e12f51d9ec37c328fa5a429c676eeeba8cd1 (diff)
downloadlinux-dc89f797abdbfc58dfb28af944f80f0299a8fafa.tar.xz
iommu/shmobile: Allocate archdata with kzalloc()
The archdata attached_list field isn't initialized, leading to random crashes when accessed. Use kzalloc() to allocate the whole structure and make sure all fields get initialized properly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/shmobile-iommu.c3
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/iommu/shmobile-iommu.c b/drivers/iommu/shmobile-iommu.c
index d572863..7a3b928 100644
--- a/drivers/iommu/shmobile-iommu.c
+++ b/drivers/iommu/shmobile-iommu.c
@@ -380,14 +380,13 @@ int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu)
kmem_cache_destroy(l1cache);
return -ENOMEM;
}
- archdata = kmalloc(sizeof(*archdata), GFP_KERNEL);
+ archdata = kzalloc(sizeof(*archdata), GFP_KERNEL);
if (!archdata) {
kmem_cache_destroy(l1cache);
kmem_cache_destroy(l2cache);
return -ENOMEM;
}
spin_lock_init(&archdata->attach_lock);
- archdata->attached = NULL;
archdata->ipmmu = ipmmu;
ipmmu_archdata = archdata;
bus_set_iommu(&platform_bus_type, &shmobile_iommu_ops);