--- a/include/linux/pagemap.h	2012-02-26 18:42:46.558197802 -0500
+++ b/include/linux/pagemap.h	2012-02-26 18:43:00.868198138 -0500
@@ -423,8 +423,10 @@
 		const char __user *end = uaddr + size - 1;
 
 		if (((unsigned long)uaddr & PAGE_MASK) !=
-				((unsigned long)end & PAGE_MASK))
+				((unsigned long)end & PAGE_MASK)) {
 		 	ret = __get_user(c, end);
+      (void)c;
+    }
 	}
 	return ret;
 }