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Driver-Core: extend devnode callbacks to provide permissions

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This allows subsytems to provide devtmpfs with non-default permissions
for the device node. Instead of the default mode of 0600, null, zero,
random, urandom, full, tty, ptmx now have a mode of 0666, which allows
non-privileged processes to access standard device nodes in case no
other userspace process applies the expected permissions.

This also fixes a wrong assignment in pktcdvd and a checkpatch.pl complain.

Signed-off-by: Kay Sievers <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Kay Sievers 2009-09-18 23:01:12 +02:00 • committed by Live-CD User
commit e454cea20b
30 changed files with 116 additions and 79 deletions
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8
block/genhd.c
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@ -998,12 +998,12 @@ struct class block_class = {
.name = "block",
};
static char *block_nodename(struct device *dev)
static char *block_devnode(struct device *dev, mode_t *mode)
{
struct gendisk *disk = dev_to_disk(dev);
if (disk->nodename)
return disk->nodename(disk);
if (disk->devnode)
return disk->devnode(disk, mode);
return NULL;
}
@ -1011,7 +1011,7 @@ static struct device_type disk_type = {
.name = "disk",
.groups = disk_attr_groups,
.release = disk_release,
.nodename = block_nodename,
.devnode = block_devnode,
};
#ifdef CONFIG_PROC_FS