iommu: msm: use list_for_each_entry_safe for deletion
Use list_for_each_entry_safe to safely delete mappings while
iterating over the mappings list.
CRs-Fixed: 1067012
Change-Id: I5326ee8e58d291b1d9b07649b87632d7e9102e0d
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
diff --git a/drivers/iommu/msm_dma_iommu_mapping.c b/drivers/iommu/msm_dma_iommu_mapping.c
index ba0a6c3..958f300 100644
--- a/drivers/iommu/msm_dma_iommu_mapping.c
+++ b/drivers/iommu/msm_dma_iommu_mapping.c
@@ -347,10 +347,12 @@
meta_node = rb_first(root);
while (meta_node) {
struct msm_iommu_map *iommu_map;
+ struct msm_iommu_map *iommu_map_next;
meta = rb_entry(meta_node, struct msm_iommu_meta, node);
mutex_lock(&meta->lock);
- list_for_each_entry(iommu_map, &meta->iommu_maps, lnode)
+ list_for_each_entry_safe(iommu_map, iommu_map_next,
+ &meta->iommu_maps, lnode)
if (iommu_map->dev == dev)
if (!kref_put(&iommu_map->ref,
msm_iommu_map_release))