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Fix waitid si_code regression

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In commit ee7c82da83 ("wait_task_stopped:
simplify and fix races with SIGCONT/SIGKILL/untrace"), the magic (short)
cast when storing si_code was lost in wait_task_stopped.  This leaks the
in-kernel CLD_* values that do not match what userland expects.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roland McGrath
2008-03-08 11:41:22 -08:00
committed by Linus Torvalds
parent 84c6f6046c
commit 6efcae4601
1 changed files with 1 additions and 1 deletions
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2
kernel/exit.c
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@@ -1378,7 +1378,7 @@ static int wait_task_stopped(struct task_struct *p,
if (!retval && infop)
retval = put_user(0, &infop->si_errno);
if (!retval && infop)
retval = put_user(why, &infop->si_code);
retval = put_user((short)why, &infop->si_code);
if (!retval && infop)
retval = put_user(exit_code, &infop->si_status);
if (!retval && infop)