Driver-Core: extend devnode callbacks to provide permissions

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>
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index 90e1a8d..e75bb87 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -727,7 +727,7 @@
 	.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 struct usb_class_driver iowarrior_class = {
 	.name = "iowarrior%d",
-	.nodename = iowarrior_nodename,
+	.devnode = iowarrior_devnode,
 	.fops = &iowarrior_fops,
 	.minor_base = IOWARRIOR_MINOR_BASE,
 };