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authorMariusz Glebocki <mglb@arccos-1.net>2015-02-10 10:51:02 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2015-02-10 14:45:35 +0100
commit0c9ebea187895c1a9f059c7f9dc01aa30e846296 (patch)
tree5aea45b5fc451f43d9a5a189830993a2787f5942
parent2e26dfce64a4d12b47c36bb49adbd30575bffe36 (diff)
Prevent null pointer dereference
-rw-r--r--drivers/video/tegra/nvmap/nvmap_handle.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/video/tegra/nvmap/nvmap_handle.c b/drivers/video/tegra/nvmap/nvmap_handle.c
index d1d5f267f5c5..1e0ce2c59c17 100644
--- a/drivers/video/tegra/nvmap/nvmap_handle.c
+++ b/drivers/video/tegra/nvmap/nvmap_handle.c
@@ -994,8 +994,9 @@ struct nvmap_handle_ref *nvmap_duplicate_handle_id(struct nvmap_client *client,
clients only if the owner is "videobuf2-dma-nvmap
which is a V4L2 capture kernel module. This handle can
be accessed by the "user" client for rendering/encoding */
- if (!strcmp(((struct nvmap_handle *)id)->owner->name,
- "videobuf2-dma-nvmap"))
+ if (id && ((struct nvmap_handle *)id)->owner &&
+ !strcmp(((struct nvmap_handle *)id)->owner->name,
+ "videobuf2-dma-nvmap"))
client = ((struct nvmap_handle *)id)->owner;
h = nvmap_validate_get(client, id);