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drm/i915: Prevent uninitialised reads during error state capture

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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>
This commit is contained in:
Chris Wilson 2011-01-24 12:34:00 +00:00
parent b705120e41
commit 8e934dbf26
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/i915_irq.c
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@ -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);