From 7fe908dd11e0c947bb72baa5b001d7abe5a420d5 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Tue, 10 Jan 2006 21:20:36 +0100 Subject: [PATCH] pcmcia: use mutexes instead of semaphores Use mutexes in the PCMICA core, as they suffice for what needs to be done. Includes a bugfix from and Signed-off-by Andrew Morton. Signed-off-by: Dominik Brodowski --- drivers/pcmcia/ds.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/pcmcia/ds.c') diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 37ba1246c282..3b7e1ba13c78 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -564,7 +564,7 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev) * won't work, this doesn't matter much at the moment: the driver core doesn't * support it either. */ -static DECLARE_MUTEX(device_add_lock); +static DEFINE_MUTEX(device_add_lock); struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) { @@ -576,7 +576,7 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f if (!s) return NULL; - down(&device_add_lock); + mutex_lock(&device_add_lock); /* max of 2 devices per card */ if (s->device_count == 2) @@ -640,7 +640,7 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f if (device_register(&p_dev->dev)) goto err_unreg; - up(&device_add_lock); + mutex_unlock(&device_add_lock); return p_dev; @@ -654,7 +654,7 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f kfree(p_dev); s->device_count--; err_put: - up(&device_add_lock); + mutex_unlock(&device_add_lock); pcmcia_put_socket(s); return NULL; @@ -713,7 +713,7 @@ static void pcmcia_bus_rescan(struct pcmcia_socket *skt) int no_devices=0; unsigned long flags; - /* must be called with skt_sem held */ + /* must be called with skt_mutex held */ spin_lock_irqsave(&pcmcia_dev_list_lock, flags); if (list_empty(&skt->devices_list)) no_devices=1; @@ -999,9 +999,9 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, if (!count) return -EINVAL; - down(&p_dev->socket->skt_sem); + mutex_lock(&p_dev->socket->skt_mutex); p_dev->allow_func_id_match = 1; - up(&p_dev->socket->skt_sem); + mutex_unlock(&p_dev->socket->skt_mutex); bus_rescan_devices(&pcmcia_bus_type); -- cgit v1.2.3