V4L/DVB (8838): 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@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/video/cpia.c b/drivers/media/video/cpia.c
index b14c59c281eb2b71c46189701d77596d18960089..c325e926de8a310f09eb15b3e0548a51d67e2e96 100644 (file)
--- a/drivers/media/video/cpia.c
+++ b/drivers/media/video/cpia.c
@@ -3202,7 +3202,7 @@ 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;