drm/i915/ringbuffer: Fix sign of ring space.
As we presume space is signed when computing and looking for wrap along,
make it so.
Reported-by: Owain G. Ainsworth <zerooa@googlemail.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index bfbc488..ce52101 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -31,7 +31,7 @@
unsigned int head;
unsigned int tail;
- unsigned int space;
+ int space;
struct intel_hw_status_page status_page;
u32 irq_gem_seqno; /* last seq seem at irq time */