From: Alan Cox <alan@redhat.com>
Date: Mon, 9 Jan 2006 14:35:28 +0000 (-0500)
Subject: [PATCH] moxa serial: add proper capability check
X-Git-Tag: v2.6.15.1~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f72e024e3a4705336b04109756bc619e7ae62fdb;p=thirdparty%2Fkernel%2Fstable.git

[PATCH] moxa serial: add proper capability check

This requires the proper capabilities for the moxa bios update ioctl's.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
---

diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 79e490ef2cf2e..68844439b59b0 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -1661,6 +1661,8 @@ int MoxaDriverIoctl(unsigned int cmd, unsigned long arg, int port)
 	case MOXA_FIND_BOARD:
 	case MOXA_LOAD_C320B:
 	case MOXA_LOAD_CODE:
+		if (!capable(CAP_SYS_RAWIO))
+			return -EPERM;
 		break;
 	}