macro argument should be enclosed in parentheses am: 7dc4b7a4af

Original change: https://android-review.googlesource.com/c/device/linaro/hikey/+/2154493

Change-Id: I2c0f29edc703592243c7d0521b379297020bb446
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/gralloc960/gralloc_helper.h b/gralloc960/gralloc_helper.h
index fea10e5..3d2b421 100644
--- a/gralloc960/gralloc_helper.h
+++ b/gralloc960/gralloc_helper.h
@@ -41,7 +41,7 @@
 
 #define GRALLOC_ALIGN(value, base) (((value) + ((base)-1)) & ~((base)-1))
 
-#define GRALLOC_UNUSED(x) ((void)x)
+#define GRALLOC_UNUSED(x) ((void)(x))
 
 static inline size_t round_up_to_page_size(size_t x)
 {