diff options
Diffstat (limited to 'drivers/w1/w1_int.c')
| -rw-r--r-- | drivers/w1/w1_int.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/drivers/w1/w1_int.c b/drivers/w1/w1_int.c index 1c776178f598..19a0ea28e9f3 100644 --- a/drivers/w1/w1_int.c +++ b/drivers/w1/w1_int.c @@ -1,15 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright (c) 2004 Evgeniy Polyakov <zbr@ioremap.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/kernel.h> @@ -41,12 +32,8 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl, * We are in process context(kernel thread), so can sleep. */ dev = kzalloc(sizeof(struct w1_master) + sizeof(struct w1_bus_master), GFP_KERNEL); - if (!dev) { - pr_err("Failed to allocate %zd bytes for new w1 device.\n", - sizeof(struct w1_master)); + if (!dev) return NULL; - } - dev->bus_master = (struct w1_bus_master *)(dev + 1); @@ -60,10 +47,9 @@ static struct w1_master *w1_alloc_dev(u32 id, int slave_count, int slave_ttl, dev->search_count = w1_search_count; dev->enable_pullup = w1_enable_pullup; - /* 1 for w1_process to decrement - * 1 for __w1_remove_master_device to decrement + /* For __w1_remove_master_device to decrement */ - atomic_set(&dev->refcnt, 2); + atomic_set(&dev->refcnt, 1); INIT_LIST_HEAD(&dev->slist); INIT_LIST_HEAD(&dev->async_list); |