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drm: Avoid oops in GEM execbuffers with bad arguments. 

Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
hifive-unleashed-5.1
Eric Anholt 2008-09-10 14:22:49 -07:00 committed by Dave Airlie
parent d4e7b898c1
commit 4f481ed22e
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/i915_gem.c
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@ -1763,6 +1763,10 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
(int) args->buffers_ptr, args->buffer_count, args->batch_len);
#endif
if (args->buffer_count < 1) {
DRM_ERROR("execbuf with %d buffers\n", args->buffer_count);
return -EINVAL;
}
/* Copy in the exec list from userland */
exec_list = drm_calloc(sizeof(*exec_list), args->buffer_count,
DRM_MEM_DRIVER);