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| author | Rob Clark <robdclark@gmail.com> | 2014-11-08 17:20:28 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-11-16 22:27:37 +0300 |
| commit | 10291bff0a5f811310ac2f6d0e382d00907a2943 (patch) | |
| tree | 0761773e0852eb026f18858b97d83b1439e75c5a /drivers/gpu/drm/msm/msm_fb.c | |
| parent | 2638d90abbe7dc23448f6b6b723cb91344cf93aa (diff) | |
| download | linux-10291bff0a5f811310ac2f6d0e382d00907a2943.tar.xz | |
drm/msm: bit of fb error checking
It's a problem that can't happen yet, since we don't support any
multi-planar formats yet. But let's avoid nasty surprises when the
time comes.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_fb.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_fb.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c index acf34ec80a75..f4e42d506ff7 100644 --- a/drivers/gpu/drm/msm/msm_fb.c +++ b/drivers/gpu/drm/msm/msm_fb.c @@ -24,7 +24,7 @@ struct msm_framebuffer { struct drm_framebuffer base; const struct msm_format *format; - struct drm_gem_object *planes[2]; + struct drm_gem_object *planes[3]; }; #define to_msm_framebuffer(x) container_of(x, struct msm_framebuffer, base) @@ -202,6 +202,11 @@ struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev, msm_fb->format = format; + if (n > ARRAY_SIZE(msm_fb->planes)) { + ret = -EINVAL; + goto fail; + } + for (i = 0; i < n; i++) { unsigned int width = mode_cmd->width / (i ? hsub : 1); unsigned int height = mode_cmd->height / (i ? vsub : 1); |