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Date: Mon, 23 Feb 2009 15:07:57 +0100
From: Karsten Wiese <fzu@...gehoertderstaat.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>,
Eric Anholt <eric@...olt.net>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: Linux 2.6.29-rc6 - Fix oops in i915_gem_retire_requests
Fix an oops in i915_gem_retire_requests()
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@...gehoertderstaat.de>
---
drivers/gpu/drm/i915/i915_gem.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 25b3374..28b726d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1051,6 +1051,9 @@ i915_gem_retire_requests(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private;
uint32_t seqno;
+ if (!dev_priv->hw_status_page)
+ return;
+
seqno = i915_get_gem_seqno(dev);
while (!list_empty(&dev_priv->mm.request_list)) {
--
1.6.0.6
--
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