diff options
| author | Andrew Morton <akpm@linux-foundation.org> | 2008-05-01 04:34:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-01 08:04:00 -0700 |
| commit | 23d077e28127ea96408032edcf9dd7062a0daaa3 (patch) | |
| tree | d80418062130be41d6f99f1bd7a310c040d5e8e8 /drivers/pcmcia/soc_common.c | |
| parent | 12d1e75d3d4d2748f5db308d9b5d5b873435c308 (diff) | |
drivers/pcmcia/soc_common.c: convert soc_pcmcia_sockets_lock into a mutex and make it static
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/pcmcia/soc_common.c')
| -rw-r--r-- | drivers/pcmcia/soc_common.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c index aa7779d89752..78356481be93 100644 --- a/drivers/pcmcia/soc_common.c +++ b/drivers/pcmcia/soc_common.c @@ -37,6 +37,7 @@ #include <linux/kernel.h> #include <linux/timer.h> #include <linux/mm.h> +#include <linux/mutex.h> #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/spinlock.h> @@ -578,7 +579,7 @@ EXPORT_SYMBOL(soc_pcmcia_enable_irqs); LIST_HEAD(soc_pcmcia_sockets); -DECLARE_MUTEX(soc_pcmcia_sockets_lock); +static DEFINE_MUTEX(soc_pcmcia_sockets_lock); static const char *skt_names[] = { "PCMCIA socket 0", @@ -601,11 +602,11 @@ soc_pcmcia_notifier(struct notifier_block *nb, unsigned long val, void *data) struct cpufreq_freqs *freqs = data; int ret = 0; - down(&soc_pcmcia_sockets_lock); + mutex_lock(&soc_pcmcia_sockets_lock); list_for_each_entry(skt, &soc_pcmcia_sockets, node) if ( skt->ops->frequency_change ) ret += skt->ops->frequency_change(skt, val, freqs); - up(&soc_pcmcia_sockets_lock); + mutex_unlock(&soc_pcmcia_sockets_lock); return ret; } @@ -642,7 +643,7 @@ int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops struct soc_pcmcia_socket *skt; int ret, i; - down(&soc_pcmcia_sockets_lock); + mutex_lock(&soc_pcmcia_sockets_lock); sinfo = kzalloc(SKT_DEV_INFO_SIZE(nr), GFP_KERNEL); if (!sinfo) { @@ -782,7 +783,7 @@ int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops kfree(sinfo); out: - up(&soc_pcmcia_sockets_lock); + mutex_unlock(&soc_pcmcia_sockets_lock); return ret; } @@ -793,7 +794,7 @@ int soc_common_drv_pcmcia_remove(struct device *dev) dev_set_drvdata(dev, NULL); - down(&soc_pcmcia_sockets_lock); + mutex_lock(&soc_pcmcia_sockets_lock); for (i = 0; i < sinfo->nskt; i++) { struct soc_pcmcia_socket *skt = &sinfo->skt[i]; @@ -818,7 +819,7 @@ int soc_common_drv_pcmcia_remove(struct device *dev) if (list_empty(&soc_pcmcia_sockets)) soc_pcmcia_cpufreq_unregister(); - up(&soc_pcmcia_sockets_lock); + mutex_unlock(&soc_pcmcia_sockets_lock); kfree(sinfo); |