[PATCH] waitid si_code regression

[Roland McGrath]

In commit ee7c82da830ea860b1f9274f1f0cdf99f206e7c2, 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@xxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
---
 kernel/exit.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/exit.c b/kernel/exit.c
index cd20bf0..53872bf 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1378,7 +1378,7 @@ unlock_sig:
 	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)
--
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