lkml.org 
[lkml]   [2006]   [Aug]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Return real errno from execve in ____call_usermodehelper
On Sat, 19 Aug 2006 09:30:31 +0200
Björn Steinbrink <B.Steinbrink@gmx.de> wrote:

> If execve fails in ____call_usermodehelper we treat its return value as
> error code, but as execve is a syscall, we actually want -errno there.
>
> Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de>
>
> --
>
> diff --git a/kernel/kmod.c b/kernel/kmod.c
> index 1d32def..865abc0 100644
> --- a/kernel/kmod.c
> +++ b/kernel/kmod.c
> @@ -149,8 +149,10 @@ static int ____call_usermodehelper(void
> set_cpus_allowed(current, CPU_MASK_ALL);
>
> retval = -EPERM;
> - if (current->fs->root)
> - retval = execve(sub_info->path, sub_info->argv,sub_info->envp);
> + if (current->fs->root) {
> + execve(sub_info->path, sub_info->argv, sub_info->envp);
> + retval = -errno;
> + }
>
> /* Exec failed? */
> sub_info->retval = retval;

ug. I wish we could find some way of using do_execve() here. Or hoist
sys_execve() out of the architectures.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-08-19 10:17    [W:0.054 / U:0.032 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site