From: Oleg Nesterov <oleg@redhat.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, andi@firstfloor.org,
David Howells <dhowells@redhat.com>,
Neil Horman <nhorman@tuxdriver.com>,
Roland McGrath <roland@redhat.com>
Subject: [PATCH 6/6] call_usermodehelper: UMH_WAIT_EXEC ignores kernel_thread() failure
Date: Mon, 15 Mar 2010 20:49:11 +0100 [thread overview]
Message-ID: <20100315194911.GG10896@redhat.com> (raw)
In-Reply-To: <20100315194609.GA10896@redhat.com>
UMH_WAIT_EXEC should report the error if kernel_thread() fails, like
UMH_WAIT_PROC does.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
kernel/kmod.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- 34-rc1/kernel/kmod.c~6_UMH_WAIT_EXEC 2010-03-15 20:32:23.000000000 +0100
+++ 34-rc1/kernel/kmod.c 2010-03-15 20:37:07.000000000 +0100
@@ -235,10 +235,10 @@ static void __call_usermodehelper(struct
case UMH_WAIT_PROC:
if (pid > 0)
break;
- sub_info->retval = pid;
/* FALLTHROUGH */
-
case UMH_WAIT_EXEC:
+ if (pid < 0)
+ sub_info->retval = pid;
complete(sub_info->complete);
}
}
next prev parent reply other threads:[~2010-03-15 19:50 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-15 12:29 [PATCH 0/2] exec: refactor how call_usermodehelper works, and update the sense of the core_pipe recursion check (v4 rediff) Neil Horman
2010-03-15 12:33 ` [PATCH 1/2] kmod: add init function to usermodehelper Neil Horman
2010-03-15 17:34 ` Oleg Nesterov
2010-03-15 17:56 ` Neil Horman
2010-03-15 12:36 ` [PATCH 2/2] exec: replace call_usermodehelper_pipe with use of umh init function and resolve limit Neil Horman
2010-03-15 17:39 ` Oleg Nesterov
2010-03-15 19:46 ` [PATCH 0/6] umh: keys, signals, misc Oleg Nesterov
2010-03-15 19:46 ` [PATCH 1/6] umh: creds: convert call_usermodehelper_keys() to use subprocess_info->init() Oleg Nesterov
2010-03-15 19:47 ` [PATCH 2/6] umh: creds: kill subprocess_info->cred logic Oleg Nesterov
2010-03-15 19:47 ` [PATCH 3/6] call_usermodehelper: no need to unblock signals Oleg Nesterov
2010-03-15 19:48 ` [PATCH 4/6] wait_for_helper: SIGCHLD from user-space can lead to use-after-free Oleg Nesterov
2010-03-15 19:48 ` [PATCH 5/6] call_usermodehelper: simplify/fix UMH_NO_WAIT case Oleg Nesterov
2010-03-15 19:49 ` Oleg Nesterov [this message]
2010-03-16 19:37 ` [PATCH 0/4] do_coredump: cleanups Oleg Nesterov
2010-03-16 19:38 ` [PATCH 1/4] coredump: factor out the not-ispipe file checks Oleg Nesterov
2010-03-16 19:38 ` [PATCH 2/4] coredump: cleanup "ispipe" code Oleg Nesterov
2010-03-16 19:39 ` [PATCH 3/4] coredump: factor out put_cred() calls Oleg Nesterov
2010-03-16 19:39 ` [PATCH 4/4] coredump: shift down_write(mmap_sem) into coredump_wait() Oleg Nesterov
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