[PATCH] mm/slob: remove an unnecessary check for __GFP_ZERO

[miles.chen]

From: Miles Chen <miles.chen@xxxxxxxxxxxx>

Current flow guarantees a valid pointer when handling
the __GFP_ZERO case. So remove the unnecessary NULL pointer
check.

Signed-off-by: Miles Chen <miles.chen@xxxxxxxxxxxx>
---
 mm/slob.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slob.c b/mm/slob.c
index a8bd6fa..a72649c 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -329,7 +329,7 @@ static void *slob_alloc(size_t size, gfp_t gfp, int align, int node)
 		BUG_ON(!b);
 		spin_unlock_irqrestore(&slob_lock, flags);
 	}
-	if (unlikely((gfp & __GFP_ZERO) && b))
+	if (unlikely(gfp & __GFP_ZERO))
 		memset(b, 0, size);
 	return b;
 }
-- 
1.9.1