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authorDominik Brodowski <linux@dominikbrodowski.net>2010-01-16 11:14:11 +0300
committerDominik Brodowski <linux@dominikbrodowski.net>2010-02-17 19:48:20 +0300
commit00ce99ff506a17882747a7d6874e3f5206a99043 (patch)
tree571f5b106f25f35f326d456123c4af85147c3bce /drivers/pcmcia/socket_sysfs.c
parent3d3de32fad19e37695e6649136e4cb17f9d46329 (diff)
downloadlinux-00ce99ff506a17882747a7d6874e3f5206a99043.tar.xz
pcmcia: simplify locking
replace pcmcia_socket->lock and pcmcia_dev_list_lock by using the per-socket "ops_mutex", as we do neither need different locks nor a spinlock here. Tested-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'drivers/pcmcia/socket_sysfs.c')
-rw-r--r--drivers/pcmcia/socket_sysfs.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c
index 1cba9d38d813..e8826df00a36 100644
--- a/drivers/pcmcia/socket_sysfs.c
+++ b/drivers/pcmcia/socket_sysfs.c
@@ -189,16 +189,15 @@ static ssize_t pccard_store_resource(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- unsigned long flags;
struct pcmcia_socket *s = to_socket(dev);
if (!count)
return -EINVAL;
- spin_lock_irqsave(&s->lock, flags);
+ mutex_lock(&s->ops_mutex);
if (!s->resource_setup_done)
s->resource_setup_done = 1;
- spin_unlock_irqrestore(&s->lock, flags);
+ mutex_unlock(&s->ops_mutex);
mutex_lock(&s->skt_mutex);
if ((s->callback) &&