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path: root/drivers/pcmcia/ds.c
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Diffstat (limited to 'drivers/pcmcia/ds.c')
-rw-r--r--drivers/pcmcia/ds.c35
1 files changed, 13 insertions, 22 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 508f94a2a78d..7ef7adee5e4f 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -371,8 +371,6 @@ static int pcmcia_device_remove(struct device *dev)
if (p_drv->remove)
p_drv->remove(p_dev);
- p_dev->dev_node = NULL;
-
/* check for proper unloading */
if (p_dev->_irq || p_dev->_io || p_dev->_locked)
dev_printk(KERN_INFO, dev,
@@ -479,15 +477,6 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev)
}
-/* device_add_lock is needed to avoid double registration by cardmgr and kernel.
- * Serializes pcmcia_device_add; will most likely be removed in future.
- *
- * While it has the caveat that adding new PCMCIA devices inside(!) device_register()
- * won't work, this doesn't matter much at the moment: the driver core doesn't
- * support it either.
- */
-static DEFINE_MUTEX(device_add_lock);
-
struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function)
{
struct pcmcia_device *p_dev, *tmp_dev;
@@ -497,8 +486,6 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
if (!s)
return NULL;
- mutex_lock(&device_add_lock);
-
pr_debug("adding device to %d, function %d\n", s->sock, function);
p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL);
@@ -538,8 +525,8 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
/*
* p_dev->function_config must be the same for all card functions.
- * Note that this is serialized by the device_add_lock, so that
- * only one such struct will be created.
+ * Note that this is serialized by ops_mutex, so that only one
+ * such struct will be created.
*/
list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list)
if (p_dev->func == tmp_dev->func) {
@@ -552,28 +539,31 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
/* Add to the list in pcmcia_bus_socket */
list_add(&p_dev->socket_device_list, &s->devices_list);
- mutex_unlock(&s->ops_mutex);
+ if (pcmcia_setup_irq(p_dev))
+ dev_warn(&p_dev->dev,
+ "IRQ setup failed -- device might not work\n");
if (!p_dev->function_config) {
dev_dbg(&p_dev->dev, "creating config_t\n");
p_dev->function_config = kzalloc(sizeof(struct config_t),
GFP_KERNEL);
- if (!p_dev->function_config)
+ if (!p_dev->function_config) {
+ mutex_unlock(&s->ops_mutex);
goto err_unreg;
+ }
kref_init(&p_dev->function_config->ref);
}
+ mutex_unlock(&s->ops_mutex);
dev_printk(KERN_NOTICE, &p_dev->dev,
- "pcmcia: registering new device %s\n",
- p_dev->devname);
+ "pcmcia: registering new device %s (IRQ: %d)\n",
+ p_dev->devname, p_dev->irq);
pcmcia_device_query(p_dev);
if (device_register(&p_dev->dev))
goto err_unreg;
- mutex_unlock(&device_add_lock);
-
return p_dev;
err_unreg:
@@ -591,7 +581,6 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu
kfree(p_dev->devname);
kfree(p_dev);
err_put:
- mutex_unlock(&device_add_lock);
pcmcia_put_socket(s);
return NULL;
@@ -1258,6 +1247,7 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
handle_event(skt, event);
mutex_lock(&s->ops_mutex);
destroy_cis_cache(s);
+ pcmcia_cleanup_irq(s);
mutex_unlock(&s->ops_mutex);
break;
@@ -1283,6 +1273,7 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority)
destroy_cis_cache(skt);
kfree(skt->fake_cis);
skt->fake_cis = NULL;
+ s->functions = 0;
mutex_unlock(&s->ops_mutex);
/* now, add the new card */
ds_event(skt, CS_EVENT_CARD_INSERTION,