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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 <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Kay Sievers
2009-09-18 23:01:12 +02:00
committed by Live-CD User
parent 78f28b7c55
commit e454cea20b
30 changed files with 116 additions and 79 deletions
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4
drivers/usb/misc/iowarrior.c
View File

@ -727,7 +727,7 @@ static const struct file_operations iowarrior_fops = {
.poll = iowarrior_poll,
};
static char *iowarrior_nodename(struct device *dev)
static char *iowarrior_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
}
@ -738,7 +738,7 @@ static char *iowarrior_nodename(struct device *dev)
*/
static struct usb_class_driver iowarrior_class = {
.name = "iowarrior%d",
.nodename = iowarrior_nodename,
.devnode = iowarrior_devnode,
.fops = &iowarrior_fops,
.minor_base = IOWARRIOR_MINOR_BASE,
};

4
drivers/usb/misc/legousbtower.c
View File

@ -266,7 +266,7 @@ static const struct file_operations tower_fops = {
.llseek = tower_llseek,
};
static char *legousbtower_nodename(struct device *dev)
static char *legousbtower_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "usb/%s", dev_name(dev));
}
@ -277,7 +277,7 @@ static char *legousbtower_nodename(struct device *dev)
*/
static struct usb_class_driver tower_class = {
.name = "legousbtower%d",
.nodename = legousbtower_nodename,
.devnode = legousbtower_devnode,
.fops = &tower_fops,
.minor_base = LEGO_USB_TOWER_MINOR_BASE,
};