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Fix an oops in i915_gem_retire_requests()

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dev_priv->hw_status_page can be NULL, if i915_gem_retire_requests()
is called from i915_gem_busy_ioctl().

Signed-off-by Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Karsten Wiese 2009-02-23 15:07:57 +01:00 committed by Linus Torvalds
parent ea5a42c22e
commit 6c0594a306
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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@ -1051,6 +1051,9 @@ i915_gem_retire_requests(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private; drm_i915_private_t *dev_priv = dev->dev_private;
uint32_t seqno; uint32_t seqno;
if (!dev_priv->hw_status_page)
return;
seqno = i915_get_gem_seqno(dev); seqno = i915_get_gem_seqno(dev);
while (!list_empty(&dev_priv->mm.request_list)) { while (!list_empty(&dev_priv->mm.request_list)) {