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drm/i915: Prevent uninitialised reads during error state capture
author
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 24 Jan 2011 12:34:00 +0000
(12:34 +0000)
committer
Chris Wilson
<chris@chris-wilson.co.uk>
Mon, 24 Jan 2011 18:28:29 +0000
(18:28 +0000)
error_bo and pinned_bo could be used uninitialised if there were no
active buffers.
Caught by kmemcheck.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
drivers/gpu/drm/i915/i915_irq.c
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diff --git
a/drivers/gpu/drm/i915/i915_irq.c
b/drivers/gpu/drm/i915/i915_irq.c
index
4b5a35c
..
062f353
100644
(file)
--- a/
drivers/gpu/drm/i915/i915_irq.c
+++ b/
drivers/gpu/drm/i915/i915_irq.c
@@
-846,6
+846,8
@@
static void i915_capture_error_state(struct drm_device *dev)
i++;
error->pinned_bo_count = i - error->active_bo_count;
+ error->active_bo = NULL;
+ error->pinned_bo = NULL;
if (i) {
error->active_bo = kmalloc(sizeof(*error->active_bo)*i,
GFP_ATOMIC);