linux/arch/um/kernel/umid.c
Masami Hiramatsu 0936d4f3d5 um: Use os_warn to print out pre-boot warning/error messages
Use os_warn() instead of printf/fprintf to print out
pre-boot warning/error messages to stderr.
Note that the help message and version message are
kept to print out to stdout, because user explicitly
specifies those options to get such information.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2017-07-05 23:18:25 +02:00

39 lines
730 B
C

/*
* Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
* Licensed under the GPL
*/
#include <asm/errno.h>
#include <init.h>
#include <kern.h>
#include <os.h>
/* Changed by set_umid_arg */
static int umid_inited = 0;
static int __init set_umid_arg(char *name, int *add)
{
int err;
if (umid_inited) {
os_warn("umid already set\n");
return 0;
}
*add = 0;
err = set_umid(name);
if (err == -EEXIST)
os_warn("umid '%s' already in use\n", name);
else if (!err)
umid_inited = 1;
return 0;
}
__uml_setup("umid=", set_umid_arg,
"umid=<name>\n"
" This is used to assign a unique identity to this UML machine and\n"
" is used for naming the pid file and management console socket.\n\n"
);