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authorDominik Brodowski <linux@dominikbrodowski.net>2006-01-10 21:20:36 +0100
committerDominik Brodowski <linux@dominikbrodowski.net>2006-03-31 17:02:19 +0200
commit7fe908dd11e0c947bb72baa5b001d7abe5a420d5 (patch)
treedbd6db7a79476aee256a453f33bbe08c6b3a0cc1 /drivers/pcmcia/socket_sysfs.c
parentcbbddd1046d44d90d31c7f246ed0207117602b89 (diff)
downloadop-kernel-dev-7fe908dd11e0c947bb72baa5b001d7abe5a420d5.zip
op-kernel-dev-7fe908dd11e0c947bb72baa5b001d7abe5a420d5.tar.gz
[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 <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/socket_sysfs.c')
-rw-r--r--drivers/pcmcia/socket_sysfs.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index 5ab1cde..83c6b311 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -25,6 +25,7 @@
#include <linux/pm.h>
#include <linux/pci.h>
#include <linux/device.h>
+#include <linux/mutex.h>
#include <asm/system.h>
#include <asm/irq.h>
@@ -183,7 +184,7 @@ static ssize_t pccard_store_resource(struct class_device *dev, const char *buf,
s->resource_setup_done = 1;
spin_unlock_irqrestore(&s->lock, flags);
- down(&s->skt_sem);
+ mutex_lock(&s->skt_mutex);
if ((s->callback) &&
(s->state & SOCKET_PRESENT) &&
!(s->state & SOCKET_CARDBUS)) {
@@ -192,7 +193,7 @@ static ssize_t pccard_store_resource(struct class_device *dev, const char *buf,
module_put(s->callback->owner);
}
}
- up(&s->skt_sem);
+ mutex_unlock(&s->skt_mutex);
return count;
}
@@ -322,7 +323,7 @@ static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, siz
kfree(cis);
if (!ret) {
- down(&s->skt_sem);
+ mutex_lock(&s->skt_mutex);
if ((s->callback) && (s->state & SOCKET_PRESENT) &&
!(s->state & SOCKET_CARDBUS)) {
if (try_module_get(s->callback->owner)) {
@@ -330,7 +331,7 @@ static ssize_t pccard_store_cis(struct kobject *kobj, char *buf, loff_t off, siz
module_put(s->callback->owner);
}
}
- up(&s->skt_sem);
+ mutex_unlock(&s->skt_mutex);
}
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