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| author | Jordan Crouse <jcrouse@codeaurora.org> | 2016-12-20 08:54:31 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-06 18:59:45 -0700 |
| commit | 7d33b41d34f57547e66c27e96075f8210a47b1b5 (patch) | |
| tree | ca470e79c3180184b18872702ba9bcedfbcad096 /drivers/gpu | |
| parent | 50e3950d77ba7d897c5509ca6192f1aaed426dd0 (diff) | |
| download | linux-stable-7d33b41d34f57547e66c27e96075f8210a47b1b5.tar.gz linux-stable-7d33b41d34f57547e66c27e96075f8210a47b1b5.tar.bz2 linux-stable-7d33b41d34f57547e66c27e96075f8210a47b1b5.zip | |
drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
[ Upstream commit a6cb3b864b21b7345f824a4faa12b723c8aaf099 ]
For every submission buffer object one of MSM_SUBMIT_BO_WRITE
and MSM_SUBMIT_BO_READ must be set (and nothing else). If we
allowed zero then the buffer object would never get queued to
be unreferenced.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 427898a96325..393973016b52 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -106,7 +106,8 @@ static int submit_lookup_objects(struct msm_gem_submit *submit, pagefault_disable(); } - if (submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) { + if ((submit_bo.flags & ~MSM_SUBMIT_BO_FLAGS) || + !(submit_bo.flags & MSM_SUBMIT_BO_FLAGS)) { DRM_ERROR("invalid flags: %x\n", submit_bo.flags); ret = -EINVAL; goto out_unlock; |