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| author | Jordan Crouse | 2016-12-20 16:54:30 +0100 |
|---|---|---|
| committer | Rob Clark | 2016-12-29 21:02:59 +0100 |
| commit | 6490abc4bc35fa4f3bdb9c7e49096943c50e29ea (patch) | |
| tree | 0faf0ea07cc49abea32d29302ef4fa48b5b11c67 /drivers/gpu/drm/msm | |
| parent | drm/msm: Ensure that the hardware write pointer is valid (diff) | |
| download | kernel-qcow2-linux-6490abc4bc35fa4f3bdb9c7e49096943c50e29ea.tar.gz kernel-qcow2-linux-6490abc4bc35fa4f3bdb9c7e49096943c50e29ea.tar.xz kernel-qcow2-linux-6490abc4bc35fa4f3bdb9c7e49096943c50e29ea.zip | |
drm/msm: Put back the vaddr in submit_reloc()
The error cases in submit_reloc() need to put back the virtual
address of the bo before failling. Add a single failure path
for the function.
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem_submit.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c index 166e84e4f0d4..b6411ea6ed17 100644 --- a/drivers/gpu/drm/msm/msm_gem_submit.c +++ b/drivers/gpu/drm/msm/msm_gem_submit.c @@ -290,7 +290,7 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob { uint32_t i, last_offset = 0; uint32_t *ptr; - int ret; + int ret = 0; if (offset % 4) { DRM_ERROR("non-aligned cmdstream buffer: %u\n", offset); @@ -318,12 +318,13 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob ret = copy_from_user(&submit_reloc, userptr, sizeof(submit_reloc)); if (ret) - return -EFAULT; + goto out; if (submit_reloc.submit_offset % 4) { DRM_ERROR("non-aligned reloc offset: %u\n", submit_reloc.submit_offset); - return -EINVAL; + ret = -EINVAL; + goto out; } /* offset in dwords: */ @@ -332,12 +333,13 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob if ((off >= (obj->base.size / 4)) || (off < last_offset)) { DRM_ERROR("invalid offset %u at reloc %u\n", off, i); - return -EINVAL; + ret = -EINVAL; + goto out; } ret = submit_bo(submit, submit_reloc.reloc_idx, NULL, &iova, &valid); if (ret) - return ret; + goto out; if (valid) continue; @@ -354,9 +356,10 @@ static int submit_reloc(struct msm_gem_submit *submit, struct msm_gem_object *ob last_offset = off; } +out: msm_gem_put_vaddr_locked(&obj->base); - return 0; + return ret; } static void submit_cleanup(struct msm_gem_submit *submit) |