[PATCH 07/15] mm/swap: remove unneeded p != NULL check in __swap_duplicate

[Miaohe Lin]

If p is NULL, __swap_duplicate will already return -EINVAL. So if we
reach here, p must be non-NULL.

Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
 mm/swapfile.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index d4b81ca887c0..7b4c99ca2aea 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3336,8 +3336,7 @@ static int __swap_duplicate(swp_entry_t entry, unsigned char usage)
 
 unlock_out:
 	unlock_cluster_or_swap_info(p, ci);
-	if (p)
-		put_swap_device(p);
+	put_swap_device(p);
 	return err;
 }
 
-- 
2.23.0