diff options
Diffstat (limited to 'drivers/mfd/mcp-core.c')
| -rw-r--r-- | drivers/mfd/mcp-core.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/mfd/mcp-core.c b/drivers/mfd/mcp-core.c index 62e5e3617eb0..be08eaee0a90 100644 --- a/drivers/mfd/mcp-core.c +++ b/drivers/mfd/mcp-core.c @@ -1,12 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * linux/drivers/mfd/mcp-core.c * * Copyright (C) 2001 Russell King * - * 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. - * * Generic MCP (Multimedia Communications Port) layer. All MCP locking * is solely held within this file. */ @@ -23,7 +20,7 @@ #define to_mcp(d) container_of(d, struct mcp, attached_device) #define to_mcp_driver(d) container_of(d, struct mcp_driver, drv) -static int mcp_bus_match(struct device *dev, struct device_driver *drv) +static int mcp_bus_match(struct device *dev, const struct device_driver *drv) { return 1; } @@ -36,16 +33,15 @@ static int mcp_bus_probe(struct device *dev) return drv->probe(mcp); } -static int mcp_bus_remove(struct device *dev) +static void mcp_bus_remove(struct device *dev) { struct mcp *mcp = to_mcp(dev); struct mcp_driver *drv = to_mcp_driver(dev->driver); drv->remove(mcp); - return 0; } -static struct bus_type mcp_bus_type = { +static const struct bus_type mcp_bus_type = { .name = "mcp", .match = mcp_bus_match, .probe = mcp_bus_probe, @@ -137,6 +133,7 @@ EXPORT_SYMBOL(mcp_reg_read); void mcp_enable(struct mcp *mcp) { unsigned long flags; + spin_lock_irqsave(&mcp->lock, flags); if (mcp->use_count++ == 0) mcp->ops->enable(mcp); |