From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Fri, 8 Feb 2008 12:18:45 +0000 (-0800)
Subject: rocket: don't let random users reset the controller
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4129a6454dd925560bf3f46a12eb9f01cf8d5e7e;p=linux-beck.git

rocket: don't let random users reset the controller

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index cbee71bab017..72f289279d8f 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -1399,6 +1399,9 @@ static int reset_rm2(struct r_port *info, void __user *arg)
 {
 	int reset;
 
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
 	if (copy_from_user(&reset, arg, sizeof (int)))
 		return -EFAULT;
 	if (reset)