diff options
| author | Alyssa Rosenzweig <[email protected]> | 2019-07-11 10:53:37 -0700 |
|---|---|---|
| committer | Alyssa Rosenzweig <[email protected]> | 2019-07-12 15:31:47 -0700 |
| commit | 085004cc2caa4fd3db9fadf57f6004b11ef5866a (patch) | |
| tree | c3a03574dda81bb7dc94b75123743b7159560ed1 /src | |
| parent | 8419621176502f906aac80601eecfcdce5324ff4 (diff) | |
panfrost/drm: Check allocation size is positive
Zero-sized allocations will fail with an unhelpful errno from the
kernel; check size explicitly in userspace before it gets that far.
Signed-off-by: Alyssa Rosenzweig <[email protected]>
Diffstat (limited to 'src')
| -rw-r--r-- | src/gallium/drivers/panfrost/pan_drm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/drivers/panfrost/pan_drm.c b/src/gallium/drivers/panfrost/pan_drm.c index 882523d21de..6f29ef81437 100644 --- a/src/gallium/drivers/panfrost/pan_drm.c +++ b/src/gallium/drivers/panfrost/pan_drm.c @@ -84,6 +84,10 @@ panfrost_drm_create_bo(struct panfrost_screen *screen, size_t size, uint32_t flags) { struct panfrost_bo *bo = rzalloc(screen, struct panfrost_bo); + + /* Kernel will fail (confusingly) with EPERM otherwise */ + assert(size > 0); + struct drm_panfrost_create_bo create_bo = { .size = size, .flags = flags, |