diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/input/serio/libps2.c | 10 | ||||
| -rw-r--r-- | drivers/input/serio/serio.c | 45 | ||||
| -rw-r--r-- | drivers/input/serio/serio_raw.c | 23 |
3 files changed, 40 insertions, 38 deletions
diff --git a/drivers/input/serio/libps2.c b/drivers/input/serio/libps2.c index d4c990f7c85..79c97f94bcb 100644 --- a/drivers/input/serio/libps2.c +++ b/drivers/input/serio/libps2.c @@ -84,7 +84,7 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout) maxbytes = sizeof(ps2dev->cmdbuf); } - down(&ps2dev->cmd_sem); + mutex_lock(&ps2dev->cmd_mutex); serio_pause_rx(ps2dev->serio); ps2dev->flags = PS2_FLAG_CMD; @@ -94,7 +94,7 @@ void ps2_drain(struct ps2dev *ps2dev, int maxbytes, int timeout) wait_event_timeout(ps2dev->wait, !(ps2dev->flags & PS2_FLAG_CMD), msecs_to_jiffies(timeout)); - up(&ps2dev->cmd_sem); + mutex_unlock(&ps2dev->cmd_mutex); } /* @@ -177,7 +177,7 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command) return -1; } - down(&ps2dev->cmd_sem); + mutex_lock(&ps2dev->cmd_mutex); serio_pause_rx(ps2dev->serio); ps2dev->flags = command == PS2_CMD_GETID ? PS2_FLAG_WAITID : 0; @@ -229,7 +229,7 @@ int ps2_command(struct ps2dev *ps2dev, unsigned char *param, int command) ps2dev->flags = 0; serio_continue_rx(ps2dev->serio); - up(&ps2dev->cmd_sem); + mutex_unlock(&ps2dev->cmd_mutex); return rc; } @@ -281,7 +281,7 @@ int ps2_schedule_command(struct ps2dev *ps2dev, unsigned char *param, int comman void ps2_init(struct ps2dev *ps2dev, struct serio *serio) { - init_MUTEX(&ps2dev->cmd_sem); + mutex_init(&ps2dev->cmd_mutex); init_waitqueue_head(&ps2dev->wait); ps2dev->serio = serio; } diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c index 2f76813c3a6..79e5e77ce03 100644 --- a/drivers/input/serio/serio.c +++ b/drivers/input/serio/serio.c @@ -34,6 +34,7 @@ #include <linux/sched.h> #include <linux/slab.h> #include <linux/kthread.h> +#include <linux/mutex.h> MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); MODULE_DESCRIPTION("Serio abstraction core"); @@ -52,10 +53,10 @@ EXPORT_SYMBOL(serio_rescan); EXPORT_SYMBOL(serio_reconnect); /* - * serio_sem protects entire serio subsystem and is taken every time + * serio_mutex protects entire serio subsystem and is taken every time * serio port or driver registrered or unregistered. */ -static DECLARE_MUTEX(serio_sem); +static DEFINE_MUTEX(serio_mutex); static LIST_HEAD(serio_list); @@ -70,9 +71,9 @@ static int serio_connect_driver(struct serio *serio, struct serio_driver *drv) { int retval; - down(&serio->drv_sem); + mutex_lock(&serio->drv_mutex); retval = drv->connect(serio, drv); - up(&serio->drv_sem); + mutex_unlock(&serio->drv_mutex); return retval; } @@ -81,20 +82,20 @@ static int serio_reconnect_driver(struct serio *serio) { int retval = -1; - down(&serio->drv_sem); + mutex_lock(&serio->drv_mutex); if (serio->drv && serio->drv->reconnect) retval = serio->drv->reconnect(serio); - up(&serio->drv_sem); + mutex_unlock(&serio->drv_mutex); return retval; } static void serio_disconnect_driver(struct serio *serio) { - down(&serio->drv_sem); + mutex_lock(&serio->drv_mutex); if (serio->drv) serio->drv->disconnect(serio); - up(&serio->drv_sem); + mutex_unlock(&serio->drv_mutex); } static int serio_match_port(const struct serio_device_id *ids, struct serio *serio) @@ -272,7 +273,7 @@ static void serio_handle_event(void) struct serio_event *event; struct serio_driver *serio_drv; - down(&serio_sem); + mutex_lock(&serio_mutex); /* * Note that we handle only one event here to give swsusp @@ -314,7 +315,7 @@ static void serio_handle_event(void) serio_free_event(event); } - up(&serio_sem); + mutex_unlock(&serio_mutex); } /* @@ -449,7 +450,7 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute * struct device_driver *drv; int retval; - retval = down_interruptible(&serio_sem); + retval = mutex_lock_interruptible(&serio_mutex); if (retval) return retval; @@ -469,7 +470,7 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute * retval = -EINVAL; } - up(&serio_sem); + mutex_unlock(&serio_mutex); return retval; } @@ -524,7 +525,7 @@ static void serio_init_port(struct serio *serio) __module_get(THIS_MODULE); spin_lock_init(&serio->lock); - init_MUTEX(&serio->drv_sem); + mutex_init(&serio->drv_mutex); device_initialize(&serio->dev); snprintf(serio->dev.bus_id, sizeof(serio->dev.bus_id), "serio%ld", (long)atomic_inc_return(&serio_no) - 1); @@ -661,10 +662,10 @@ void __serio_register_port(struct serio *serio, struct module *owner) */ void serio_unregister_port(struct serio *serio) { - down(&serio_sem); + mutex_lock(&serio_mutex); serio_disconnect_port(serio); serio_destroy_port(serio); - up(&serio_sem); + mutex_unlock(&serio_mutex); } /* @@ -672,17 +673,17 @@ void serio_unregister_port(struct serio *serio) */ void serio_unregister_child_port(struct serio *serio) { - down(&serio_sem); + mutex_lock(&serio_mutex); if (serio->child) { serio_disconnect_port(serio->child); serio_destroy_port(serio->child); } - up(&serio_sem); + mutex_unlock(&serio_mutex); } /* * Submits register request to kseriod for subsequent execution. - * Can be used when it is not obvious whether the serio_sem is + * Can be used when it is not obvious whether the serio_mutex is * taken or not and when delayed execution is feasible. */ void __serio_unregister_port_delayed(struct serio *serio, struct module *owner) @@ -765,7 +766,7 @@ void serio_unregister_driver(struct serio_driver *drv) { struct serio *serio; - down(&serio_sem); + mutex_lock(&serio_mutex); drv->manual_bind = 1; /* so serio_find_driver ignores it */ start_over: @@ -779,7 +780,7 @@ start_over: } driver_unregister(&drv->driver); - up(&serio_sem); + mutex_unlock(&serio_mutex); } static void serio_set_drv(struct serio *serio, struct serio_driver *drv) @@ -858,7 +859,7 @@ static int serio_resume(struct device *dev) return 0; } -/* called from serio_driver->connect/disconnect methods under serio_sem */ +/* called from serio_driver->connect/disconnect methods under serio_mutex */ int serio_open(struct serio *serio, struct serio_driver *drv) { serio_set_drv(serio, drv); @@ -870,7 +871,7 @@ int serio_open(struct serio *serio, struct serio_driver *drv) return 0; } -/* called from serio_driver->connect/disconnect methods under serio_sem */ +/* called from serio_driver->connect/disconnect methods under serio_mutex */ void serio_close(struct serio *serio) { if (serio->close) diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c index 47e08de18d0..8734e7f75b7 100644 --- a/drivers/input/serio/serio_raw.c +++ b/drivers/input/serio/serio_raw.c @@ -19,6 +19,7 @@ #include <linux/devfs_fs_kernel.h> #include <linux/miscdevice.h> #include <linux/wait.h> +#include <linux/mutex.h> #define DRIVER_DESC "Raw serio driver" @@ -46,7 +47,7 @@ struct serio_raw_list { struct list_head node; }; -static DECLARE_MUTEX(serio_raw_sem); +static DEFINE_MUTEX(serio_raw_mutex); static LIST_HEAD(serio_raw_list); static unsigned int serio_raw_no; @@ -81,7 +82,7 @@ static int serio_raw_open(struct inode *inode, struct file *file) struct serio_raw_list *list; int retval = 0; - retval = down_interruptible(&serio_raw_sem); + retval = mutex_lock_interruptible(&serio_raw_mutex); if (retval) return retval; @@ -108,7 +109,7 @@ static int serio_raw_open(struct inode *inode, struct file *file) list_add_tail(&list->node, &serio_raw->list); out: - up(&serio_raw_sem); + mutex_unlock(&serio_raw_mutex); return retval; } @@ -130,12 +131,12 @@ static int serio_raw_release(struct inode *inode, struct file *file) struct serio_raw_list *list = file->private_data; struct serio_raw *serio_raw = list->serio_raw; - down(&serio_raw_sem); + mutex_lock(&serio_raw_mutex); serio_raw_fasync(-1, file, 0); serio_raw_cleanup(serio_raw); - up(&serio_raw_sem); + mutex_unlock(&serio_raw_mutex); return 0; } @@ -194,7 +195,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz int retval; unsigned char c; - retval = down_interruptible(&serio_raw_sem); + retval = mutex_lock_interruptible(&serio_raw_mutex); if (retval) return retval; @@ -219,7 +220,7 @@ static ssize_t serio_raw_write(struct file *file, const char __user *buffer, siz }; out: - up(&serio_raw_sem); + mutex_unlock(&serio_raw_mutex); return written; } @@ -280,7 +281,7 @@ static int serio_raw_connect(struct serio *serio, struct serio_driver *drv) return -ENOMEM; } - down(&serio_raw_sem); + mutex_lock(&serio_raw_mutex); memset(serio_raw, 0, sizeof(struct serio_raw)); snprintf(serio_raw->name, sizeof(serio_raw->name), "serio_raw%d", serio_raw_no++); @@ -325,7 +326,7 @@ out_free: serio_set_drvdata(serio, NULL); kfree(serio_raw); out: - up(&serio_raw_sem); + mutex_unlock(&serio_raw_mutex); return err; } @@ -350,7 +351,7 @@ static void serio_raw_disconnect(struct serio *serio) { struct serio_raw *serio_raw; - down(&serio_raw_sem); + mutex_lock(&serio_raw_mutex); serio_raw = serio_get_drvdata(serio); @@ -361,7 +362,7 @@ static void serio_raw_disconnect(struct serio *serio) if (!serio_raw_cleanup(serio_raw)) wake_up_interruptible(&serio_raw->wait); - up(&serio_raw_sem); + mutex_unlock(&serio_raw_mutex); } static struct serio_device_id serio_raw_serio_ids[] = { |