lib: bitmap: micro-optimize bitmap_allocate_region

__reg_op(..., REG_OP_ALLOC) always returns 0, so we might as well use that and save an instruction. Signed-off-by: Rasmus Villemoes <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
ambv · Aug 7, 2014 · 2ac521d · 2ac521d
1 parent 9279d32
commit 2ac521d
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/lib/bitmap.c b/lib/bitmap.c
@@ -1154,8 +1154,7 @@ int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order)
 {
 	if (!__reg_op(bitmap, pos, order, REG_OP_ISFREE))
 		return -EBUSY;
-	__reg_op(bitmap, pos, order, REG_OP_ALLOC);
-	return 0;
+	return __reg_op(bitmap, pos, order, REG_OP_ALLOC);
 }
 EXPORT_SYMBOL(bitmap_allocate_region);