linux-kernel - [tip:sched/core] sched: Simplify return logic in sched_copy

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Message-ID: <tip-814927325e815b667a133d9dcdf2286f88b78328@git.kernel.org>
Date:	Mon, 19 May 2014 06:08:08 -0700
From:	tip-bot for Michael Kerrisk <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...nel.org,
	peterz@...radead.org, tglx@...utronix.de, mtk.manpages@...il.com
Subject: [tip:sched/core] sched: Simplify return logic in sched_copy_attr(
 )

Commit-ID:  814927325e815b667a133d9dcdf2286f88b78328
Gitweb:     http://git.kernel.org/tip/814927325e815b667a133d9dcdf2286f88b78328
Author:     Michael Kerrisk <mtk.manpages@...il.com>
AuthorDate: Fri, 9 May 2014 16:54:28 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Mon, 19 May 2014 22:02:39 +0900

sched: Simplify return logic in sched_copy_attr()

The logic in this function is a little contorted:
* Rather than having chained gotos for the -EFBIG case, just
  return -EFBIG directly.
* Now, the label 'out' is no longer needed, and 'ret' must be zero
  zero by the time we fall through to this point, so just return 0.

Signed-off-by: Michael Kerrisk <mtk.manpages@...il.com>
Signed-off-by: Peter Zijlstra <peterz@...radead.org>
Link: http://lkml.kernel.org/r/536CEC24.9080201@gmail.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 kernel/sched/core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9e1a3e0..08b6355 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3657,13 +3657,11 @@ static int sched_copy_attr(struct sched_attr __user *uattr,
 	 */
 	attr->sched_nice = clamp(attr->sched_nice, MIN_NICE, MAX_NICE);
 
-out:
-	return ret;
+	return 0;
 
 err_size:
 	put_user(sizeof(*attr), &uattr->size);
-	ret = -E2BIG;
-	goto out;
+	return -E2BIG;
 }
 
 /**
--
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