diff options
Diffstat (limited to 'drivers/video/tegra')
| -rw-r--r-- | drivers/video/tegra/nvmap/nvmap_dev.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/video/tegra/nvmap/nvmap_dev.c b/drivers/video/tegra/nvmap/nvmap_dev.c index 0c12348db88e..3b0db14f16ca 100644 --- a/drivers/video/tegra/nvmap/nvmap_dev.c +++ b/drivers/video/tegra/nvmap/nvmap_dev.c @@ -1,10 +1,10 @@ /* + * Copyright (c) 2011-2013, NVIDIA CORPORATION. All rights reserved. + * * drivers/video/tegra/nvmap/nvmap_dev.c * * User-space interface to nvmap * - * Copyright (c) 2011-2012, NVIDIA Corporation. - * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -231,6 +231,14 @@ struct nvmap_handle *nvmap_get_handle_id(struct nvmap_client *client, struct nvmap_handle_ref *ref; struct nvmap_handle *h = NULL; + /* Allow the handle to be accessed by other (non-owner) + 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 */ + if (!strcmp(((struct nvmap_handle *)id)->owner->name, + "videobuf2-dma-nvmap")) + client = ((struct nvmap_handle *)id)->owner; + nvmap_ref_lock(client); ref = _nvmap_validate_id_locked(client, id); if (ref) |