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sched: fix return value of wait_for_completion_interruptible()

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The recent wait_for_completion() cleanups:

    commit 8cbbe86dfc
    Author: Andi Kleen <ak@suse.de>
    Date:   Mon Oct 15 17:00:14 2007 +0200

    sched: cleanup: refactor common code of sleep_on / wait_for_completion

    Refactor common code of sleep_on / wait_for_completion

broke the return value of wait_for_completion_interruptible().
Previously it returned 0 on success, now -1.  Fix that.

Problem found by Geert Uytterhoeven.

[ mingo: fixed whitespace damage ]

Reported-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Andi Kleen 2007-10-18 21:32:55 +02:00 committed by Ingo Molnar
parent d85714d81c
commit 51e9799023
1 changed files with 4 additions and 1 deletions
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5
kernel/sched.c
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@ -3859,7 +3859,10 @@ EXPORT_SYMBOL(wait_for_completion_timeout);
int __sched wait_for_completion_interruptible(struct completion *x)
{
return wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE);
long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE);
if (t == -ERESTARTSYS)
return t;
return 0;
}
EXPORT_SYMBOL(wait_for_completion_interruptible);