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authorAndrew Morton <akpm@linux-foundation.org>2008-05-01 04:34:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 08:04:00 -0700
commit23d077e28127ea96408032edcf9dd7062a0daaa3 (patch)
treed80418062130be41d6f99f1bd7a310c040d5e8e8 /drivers/pcmcia/soc_common.c
parent12d1e75d3d4d2748f5db308d9b5d5b873435c308 (diff)
downloadlinux-23d077e28127ea96408032edcf9dd7062a0daaa3.tar.bz2
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.c15
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);