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: v2.6.16-rc1~450
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=49cd619c69d643b30a24029e40eb5364c7a26b2e;p=platform%2Fkernel%2Flinux-stable.git

[PATCH] moxa serial: add proper capability check

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

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 5e3ef55..f43c2e0 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -1649,6 +1649,8 @@ 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;
 	}