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Message-ID: <536CEC24.9080201@gmail.com>
Date:	Fri, 09 May 2014 16:54:28 +0200
From:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	mtk.manpages@...il.com, lkml <linux-kernel@...r.kernel.org>,
	Juri Lelli <juri.lelli@...il.com>,
	Dario Faggioli <raistlin@...ux.it>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH 2/3] sched: Simplify return logic in sched_copy_attr()

From: Michael Kerrisk <mtk.manpages@...il.com>

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>
---
 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 6c9ce28..8fa3e12 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3596,13 +3596,11 @@ 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;
 }
 
 /**
-- 
1.9.0


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