linux-kernel - [tip:locking/core] futex: No need to check return value of debugfs

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Message-ID: <tip-0365aeba50841e087b3d6a0eca1bddccc5e650c8@git.kernel.org>
Date:   Tue, 29 Jan 2019 11:19:33 -0800
From:   tip-bot for Greg Kroah-Hartman <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     peterz@...radead.org, tglx@...utronix.de, dvhart@...radead.org,
        mingo@...nel.org, linux-kernel@...r.kernel.org,
        gregkh@...uxfoundation.org, hpa@...or.com
Subject: [tip:locking/core] futex: No need to check return value of
 debugfs_create functions

Commit-ID:  0365aeba50841e087b3d6a0eca1bddccc5e650c8
Gitweb:     https://git.kernel.org/tip/0365aeba50841e087b3d6a0eca1bddccc5e650c8
Author:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
AuthorDate: Tue, 22 Jan 2019 16:21:39 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Tue, 29 Jan 2019 20:15:48 +0100

futex: No need to check return value of debugfs_create functions

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.

Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Reviewed-by: Darren Hart (VMware) <dvhart@...radead.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Link: https://lkml.kernel.org/r/20190122152151.16139-40-gregkh@linuxfoundation.org

---
 kernel/futex.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/kernel/futex.c b/kernel/futex.c
index fdd312da0992..69e619baf709 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -321,12 +321,8 @@ static int __init fail_futex_debugfs(void)
 	if (IS_ERR(dir))
 		return PTR_ERR(dir);
 
-	if (!debugfs_create_bool("ignore-private", mode, dir,
-				 &fail_futex.ignore_private)) {
-		debugfs_remove_recursive(dir);
-		return -ENOMEM;
-	}
-
+	debugfs_create_bool("ignore-private", mode, dir,
+			    &fail_futex.ignore_private);
 	return 0;
 }