Messages in this thread Patch in this message | | | Date | Fri, 7 Mar 2008 19:37:42 +0100 | From | Matthias Kaehlcke <> | Subject | [PATCH] drivers/pcmcia/soc_common.c: convert soc_pcmcia_sockets_lock in a mutex |
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drivers/pcmcia/soc_common.c: the semaphore soc_pcmcia_sockets_lock is used as a mutex, convert it to the mutex API
Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
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diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c index aa7779d..3490431 100644 --- a/drivers/pcmcia/soc_common.c +++ b/drivers/pcmcia/soc_common.c @@ -578,7 +578,7 @@ EXPORT_SYMBOL(soc_pcmcia_enable_irqs); LIST_HEAD(soc_pcmcia_sockets); -DECLARE_MUTEX(soc_pcmcia_sockets_lock); +DEFINE_MUTEX(soc_pcmcia_sockets_lock); static const char *skt_names[] = { "PCMCIA socket 0", @@ -601,11 +601,11 @@ 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 +642,7 @@ 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 +782,7 @@ 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 +793,7 @@ 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 +818,7 @@ 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); diff --git a/drivers/pcmcia/soc_common.h b/drivers/pcmcia/soc_common.h index 6f14126..a553df5 100644 --- a/drivers/pcmcia/soc_common.h +++ b/drivers/pcmcia/soc_common.h @@ -11,6 +11,7 @@ /* include the world */ #include <linux/cpufreq.h> +#include <linux/mutex.h> #include <pcmcia/cs_types.h> #include <pcmcia/cs.h> #include <pcmcia/ss.h> @@ -133,7 +134,7 @@ extern void soc_common_pcmcia_get_timing(struct soc_pcmcia_socket *, struct soc_ extern struct list_head soc_pcmcia_sockets; -extern struct semaphore soc_pcmcia_sockets_lock; +extern struct mutex soc_pcmcia_sockets_lock; extern int soc_common_drv_pcmcia_probe(struct device *dev, struct pcmcia_low_level *ops, int first, int nr); extern int soc_common_drv_pcmcia_remove(struct device *dev); -- Matthias Kaehlcke Linux System Developer Barcelona
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