Vitaly Mayatskikh b6fe2d117e wait_noreap_copyout(): check for ->wo_info != NULL
Current behaviour of sys_waitid() looks odd.  If user passes infop ==
NULL, sys_waitid() returns success.  When user additionally specifies flag
WNOWAIT, sys_waitid() returns -EFAULT on the same conditions.  When user
combines WNOWAIT with WCONTINUED, sys_waitid() again returns success.

This patch adds check for ->wo_info in wait_noreap_copyout().

User-visible change: starting from this commit, sys_waitid() always checks
infop != NULL and does not fail if it is NULL.

Signed-off-by: Vitaly Mayatskikh <v.mayatskih@gmail.com>
Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-24 07:21:00 -07:00
..
2009-08-20 10:29:28 +10:00
2009-09-23 18:13:10 -07:00
2009-06-24 00:02:38 -04:00
2009-06-24 00:02:38 -04:00
2009-09-18 09:48:52 -07:00
2008-10-16 11:21:30 -07:00
2009-06-16 19:47:48 -07:00
2009-08-29 14:10:07 +02:00
2009-09-19 13:13:17 -07:00
2009-05-15 07:56:24 -05:00
2009-09-23 07:39:29 -07:00
2009-07-24 10:53:29 +02:00
2009-01-14 18:09:02 +01:00
2009-06-18 13:03:56 -07:00
2009-06-18 13:03:55 -07:00
2008-09-02 19:21:40 -07:00
2009-09-19 08:53:22 +02:00
2009-09-19 08:53:22 +02:00
2009-09-19 08:53:22 +02:00
2009-09-23 07:39:41 -07:00
2009-09-18 20:47:30 +02:00
2009-09-23 07:39:30 -07:00
2009-09-23 18:13:10 -07:00
2009-07-12 14:03:27 -07:00
2009-09-23 18:13:10 -07:00
2009-06-15 21:30:23 -07:00
2009-06-18 13:03:55 -07:00