[Intel-gfx] [PATCH v1 1/2] drm/i915: Contain the WA_REG macro

[Arun Siluvery]

From: Mika Kuoppala <mika.kuoppala at intel.com>

Prevent leaking the if scoping by containing the WA_REG
macro inside its own scope.

Reported-by: Arun Siluvery <arun.siluvery at linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1c14233..cf61262 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -780,11 +780,11 @@ static int wa_add(struct drm_i915_private *dev_priv,
 	return 0;
 }
 
-#define WA_REG(addr, mask, val) { \
+#define WA_REG(addr, mask, val) do { \
 		const int r = wa_add(dev_priv, (addr), (mask), (val)); \
 		if (r) \
 			return r; \
-	}
+	} while(0)
 
 #define WA_SET_BIT_MASKED(addr, mask) \
 	WA_REG(addr, (mask), _MASKED_BIT_ENABLE(mask))
-- 
1.9.1