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| author | Noralf Trønnes <noralf@tronnes.org> | 2017-08-17 19:21:30 +0300 |
|---|---|---|
| committer | Noralf Trønnes <noralf@tronnes.org> | 2017-09-02 15:21:52 +0300 |
| commit | 90378e58919285637aa0f063c04ba0c6449d98b1 (patch) | |
| tree | f0c251ae034c894b217ea704c1a1ad97b6721388 /drivers/gpu/drm/drm_gem.c | |
| parent | b7df5749c2f883c4a9b166e3ebb82f9627eddab1 (diff) | |
| download | linux-90378e58919285637aa0f063c04ba0c6449d98b1.tar.xz | |
drm/gem: drm_gem_dumb_map_offset(): reject dma-buf
Reject mapping an imported dma-buf since is's an invalid use-case.
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1502986891-36764-2-git-send-email-noralf@tronnes.org
Diffstat (limited to 'drivers/gpu/drm/drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/drm_gem.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index 88c6d78ee2d5..8bea0326e7a7 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -333,6 +333,12 @@ int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev, if (!obj) return -ENOENT; + /* Don't allow imported objects to be mapped */ + if (obj->import_attach) { + ret = -EINVAL; + goto out; + } + ret = drm_gem_create_mmap_offset(obj); if (ret) goto out; |