[PATCH] w1: Cleans up usage of touch_bit/w1_read_bit/w1_write_bit.

Cleans up usage of touch_bit/w1_read_bit/w1_write_bit.

Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Evgeniy Polyakov
2005-06-04 01:21:46 +04:00
committed by Greg Kroah-Hartman
parent 4e470aa964
commit be57ce267f
3 changed files with 70 additions and 12 deletions

View File

@@ -121,6 +121,14 @@ int w1_add_master_device(struct w1_bus_master *master)
int retval = 0;
struct w1_netlink_msg msg;
/* validate minimum functionality */
if (!(master->touch_bit && master->reset_bus) &&
!(master->write_bit && master->read_bit))
{
printk(KERN_ERR "w1_add_master_device: invalid function set\n");
return(-EINVAL);
}
dev = w1_alloc_dev(w1_ids++, w1_max_slave_count, w1_max_slave_ttl, &w1_driver, &w1_device);
if (!dev)
return -ENOMEM;