From 4f06e43e505742113fc7cec3bfcc31db7ade5dcd Mon Sep 17 00:00:00 2001
From: andersen <andersen@69ca8d6d-28ef-0310-b511-8ec308f3f277>
Date: Thu, 5 Jul 2001 16:09:32 +0000
Subject: Be extra extra careful about what we dereference.

git-svn-id: svn://busybox.net/trunk/busybox@3004 69ca8d6d-28ef-0310-b511-8ec308f3f277
---
 poweroff.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'poweroff.c')

diff --git a/poweroff.c b/poweroff.c
index 007099d4d..8bb20e9bb 100644
--- a/poweroff.c
+++ b/poweroff.c
@@ -28,7 +28,10 @@ extern int poweroff_main(int argc, char **argv)
 {
 #ifdef BB_FEATURE_LINUXRC
 	/* don't assume init's pid == 1 */
-	return(kill(*(find_pid_by_name("init")), SIGUSR2));
+	pid_t *pid = find_pid_by_name("init");
+	if (!pid || *pid<=0)
+		error_msg_and_die("no process killed");
+	return(kill(*pid, SIGUSR2));
 #else
 	return(kill(1, SIGUSR2));
 #endif
-- 
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