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drm/i915: Correctly reject invalid flags for wait_ioctl 

Not having checks for this isn't good.

I've checked igt and libdrm and they all already clear flags properly.
So we're lucky and should be able to sneak this ABI clarification in.

Testcase: igt/gem_wait/invalid-flags
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85280
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2014-09-29 15:31:26 +02:00
parent 43d942a780
commit 11b5d5112c
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_gem.c
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@ -2810,6 +2810,9 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
u32 seqno = 0;
int ret = 0;
if (args->flags != 0)
return -EINVAL;
ret = i915_mutex_lock_interruptible(dev);
if (ret)
return ret;