[patch 050/173] mm/swap_slots.c: remove redundant NULL check

From: Yang Li <redacted>
Subject: mm/swap_slots.c: remove redundant NULL check

Fix below warnings reported by coccicheck:
./mm/swap_slots.c:197:3-9: WARNING: NULL check before some freeing
functions is not needed.

Link: https://lkml.kernel.org/r/1611214229-11225-1-git-send-email-abaci-bugfix@linux.alibaba.com
Signed-off-by: Yang Li <redacted>
Reported-by: Abaci Robot <redacted>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: David Hildenbrand <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/swap_slots.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/mm/swap_slots.c~mm-swap_slotsc-remove-redundant-null-check
+++ a/mm/swap_slots.c

@@ -193,8 +193,7 @@ static void drain_slots_cache_cpu(unsign
 			cache->slots_ret = NULL;
 		}
 		spin_unlock_irq(&cache->free_lock);
-		if (slots)
-			kvfree(slots);
+		kvfree(slots);
 	}
 }
 

_