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do_wait: factor out "retval != 0" checks 

Every branch if the main "if" statement does the same code at the end.  Move
it down.  Also, fix the indentation.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oleg Nesterov 2008-02-08 04:19:02 -08:00 committed by Linus Torvalds
parent ee7c82da83
commit 9cbab81005
1 changed files with 4 additions and 8 deletions
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12
kernel/exit.c
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@ -1511,6 +1511,7 @@ repeat:
}
allowed = 1;
retval = 0;
if (task_is_stopped_or_traced(p)) {
/*
* It's stopped now, so it might later
@ -1524,8 +1525,6 @@ repeat:
retval = wait_task_stopped(p, ret == 2,
(options & WNOWAIT), infop,
stat_addr, ru);
if (retval != 0) /* He released the lock. */
goto end;
} else if (p->exit_state == EXIT_ZOMBIE) {
/*
* Eligible but we cannot release it yet:
@ -1537,9 +1536,6 @@ repeat:
retval = wait_task_zombie(p,
(options & WNOWAIT), infop,
stat_addr, ru);
/* He released the lock. */
if (retval != 0)
goto end;
} else if (p->exit_state != EXIT_DEAD) {
check_continued:
/*
@ -1552,9 +1548,9 @@ check_continued:
retval = wait_task_continued(p,
(options & WNOWAIT), infop,
stat_addr, ru);
if (retval != 0) /* He released the lock. */
goto end;
}
if (retval != 0) /* tasklist_lock released */
goto end;
}
if (!flag) {
list_for_each_entry(p, &tsk->ptrace_children,
@ -1590,7 +1586,7 @@ end:
remove_wait_queue(&current->signal->wait_chldexit,&wait);
if (infop) {
if (retval > 0)
retval = 0;
retval = 0;
else {
/*
* For a WNOHANG return, clear out all the fields