linux-kernel - [PATCH] zswap: ignore debugfs_create

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Message-Id: <20190122152151.16139-9-gregkh@linuxfoundation.org>
Date:   Tue, 22 Jan 2019 16:21:08 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Seth Jennings <sjenning@...hat.com>,
        Dan Streetman <ddstreet@...e.org>, linux-mm@...ck.org
Subject: [PATCH] zswap: ignore debugfs_create_dir() return value

When calling debugfs functions, there is no need to ever check the
return value.  The function can work or not, but the code logic should
never do something different based on this.

Cc: Seth Jennings <sjenning@...hat.com>
Cc: Dan Streetman <ddstreet@...e.org>
Cc: linux-mm@...ck.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 mm/zswap.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index a4e4d36ec085..f583d08f6e24 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1262,8 +1262,6 @@ static int __init zswap_debugfs_init(void)
 		return -ENODEV;
 
 	zswap_debugfs_root = debugfs_create_dir("zswap", NULL);
-	if (!zswap_debugfs_root)
-		return -ENOMEM;
 
 	debugfs_create_u64("pool_limit_hit", 0444,
 			   zswap_debugfs_root, &zswap_pool_limit_hit);
-- 
2.20.1