From: Kenneth Lee <kenlee@dg.gov.cn>
Date: Sat, 16 Sep 2006 19:15:55 +0000 (-0700)
Subject: [PATCH] bug fix in kernel/kmod.c
X-Git-Tag: v2.6.18~14^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e4b69aa2a1bcee21f8d5e089b8682dd8aaace5eb;p=pandora-kernel.git

[PATCH] bug fix in kernel/kmod.c

I think there is a bug in kmod.c: In __call_usermodehelper(), when
kernel_thread(wait_for_helper, ...) return success, since wait_for_helper()
might call complete() at any time, the sub_info should not be used any
more.

Normally wait_for_helper() take a long time to finish, you may not get
problem for most of the case.  But if you remove /sbin/modprobe, it may
become easier for you to get a oop in khelper.

Cc: Matt Helsley <matthltc@us.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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