[tip:sched/core] sched: Simplify return logic in sched_copy_attr( )

From: tip-bot for Michael Kerrisk
Date: Thu May 22 2014 - 08:27:41 EST


Commit-ID: e78c7bca56dab5ce4f22694f99115ec07e4935f6
Gitweb: http://git.kernel.org/tip/e78c7bca56dab5ce4f22694f99115ec07e4935f6
Author: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
AuthorDate: Fri, 9 May 2014 16:54:28 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Thu, 22 May 2014 11:16:26 +0200

sched: Simplify return logic in sched_copy_attr()

The logic in this function is a little contorted, clean it up:

* 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@xxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/536CEC24.9080201@xxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
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 2551b6d..2318fc4 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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