linux-kernel - [PATCH 11/59] CRED: Wrap task credential accesses in video input drivers

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Message-ID: <20080827134638.19980.39537.stgit@warthog.procyon.org.uk>
Date:	Wed, 27 Aug 2008 14:46:39 +0100
From:	David Howells <dhowells@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	linux-security-module@...r.kernel.org,
	David Howells <dhowells@...hat.com>,
	Serge Hallyn <serue@...ibm.com>,
	Mauro Carvalho Chehab <mchehab@...radead.org>,
	video4linux-list@...hat.com
Subject: [PATCH 11/59] CRED: Wrap task credential accesses in video input
	drivers

Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.

Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

Change some task->e?[ug]id to task_e?[ug]id().  In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.

Signed-off-by: David Howells <dhowells@...hat.com>
Reviewed-by: James Morris <jmorris@...ei.org>
Acked-by: Serge Hallyn <serue@...ibm.com>
Cc: Mauro Carvalho Chehab <mchehab@...radead.org>
Cc: video4linux-list@...hat.com
---

 drivers/media/video/cpia.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


diff --git a/drivers/media/video/cpia.c b/drivers/media/video/cpia.c
index f5f6944..844b445 100644
--- a/drivers/media/video/cpia.c
+++ b/drivers/media/video/cpia.c
@@ -3198,7 +3198,7 @@ static int cpia_open(struct inode *inode, struct file *file)
 
 	/* Set ownership of /proc/cpia/videoX to current user */
 	if(cam->proc_entry)
-		cam->proc_entry->uid = current->uid;
+		cam->proc_entry->uid = current_uid();
 
 	/* set mark for loading first frame uncompressed */
 	cam->first_frame = 1;

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