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i2c: Rename main mutex 

Rename the main mutex in i2c-core from core_lists to core_lock. This
makes more sense now that the redundant lists are gone.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
hifive-unleashed-5.1
Jean Delvare 2008-01-27 18:14:49 +01:00 committed by Jean Delvare
parent 026526f5af
commit caada32afe
1 changed files with 15 additions and 15 deletions
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30
drivers/i2c/i2c-core.c
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@ -39,7 +39,7 @@
#include "i2c-core.h"
static DEFINE_MUTEX(core_lists);
static DEFINE_MUTEX(core_lock);
static DEFINE_IDR(i2c_adapter_idr);
#define is_newstyle_driver(d) ((d)->probe || (d)->remove)
@ -339,7 +339,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
mutex_init(&adap->clist_lock);
INIT_LIST_HEAD(&adap->clients);
mutex_lock(&core_lists);
mutex_lock(&core_lock);
/* Add the adapter to the driver core.
* If the parent pointer is not set up,
@ -368,7 +368,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
i2c_do_add_adapter);
out_unlock:
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
return res;
out_list:
@ -397,11 +397,11 @@ retry:
if (idr_pre_get(&i2c_adapter_idr, GFP_KERNEL) == 0)
return -ENOMEM;
mutex_lock(&core_lists);
mutex_lock(&core_lock);
/* "above" here means "above or equal to", sigh */
res = idr_get_new_above(&i2c_adapter_idr, adapter,
__i2c_first_dynamic_bus_num, &id);
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
if (res < 0) {
if (res == -EAGAIN)
@ -446,7 +446,7 @@ retry:
if (idr_pre_get(&i2c_adapter_idr, GFP_KERNEL) == 0)
return -ENOMEM;
mutex_lock(&core_lists);
mutex_lock(&core_lock);
/* "above" here means "above or equal to", sigh;
* we need the "equal to" result to force the result
*/
@ -455,7 +455,7 @@ retry:
status = -EBUSY;
idr_remove(&i2c_adapter_idr, id);
}
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
if (status == -EAGAIN)
goto retry;
@ -494,7 +494,7 @@ int i2c_del_adapter(struct i2c_adapter *adap)
struct i2c_client *client;
int res = 0;
mutex_lock(&core_lists);
mutex_lock(&core_lock);
/* First make sure that this adapter was ever added */
if (idr_find(&i2c_adapter_idr, adap->nr) != adap) {
@ -546,7 +546,7 @@ int i2c_del_adapter(struct i2c_adapter *adap)
dev_dbg(&adap->dev, "adapter [%s] unregistered\n", adap->name);
out_unlock:
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
return res;
}
EXPORT_SYMBOL(i2c_del_adapter);
@ -589,7 +589,7 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
if (res)
return res;
mutex_lock(&core_lists);
mutex_lock(&core_lock);
pr_debug("i2c-core: driver [%s] registered\n", driver->driver.name);
@ -605,7 +605,7 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
up(&i2c_adapter_class.sem);
}
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
return 0;
}
EXPORT_SYMBOL(i2c_register_driver);
@ -621,7 +621,7 @@ void i2c_del_driver(struct i2c_driver *driver)
struct i2c_client *client;
struct i2c_adapter *adap;
mutex_lock(&core_lists);
mutex_lock(&core_lock);
/* new-style driver? */
if (is_newstyle_driver(driver))
@ -662,7 +662,7 @@ void i2c_del_driver(struct i2c_driver *driver)
driver_unregister(&driver->driver);
pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name);
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
}
EXPORT_SYMBOL(i2c_del_driver);
@ -1121,12 +1121,12 @@ struct i2c_adapter* i2c_get_adapter(int id)
{
struct i2c_adapter *adapter;
mutex_lock(&core_lists);
mutex_lock(&core_lock);
adapter = (struct i2c_adapter *)idr_find(&i2c_adapter_idr, id);
if (adapter && !try_module_get(adapter->owner))
adapter = NULL;
mutex_unlock(&core_lists);
mutex_unlock(&core_lock);
return adapter;
}
EXPORT_SYMBOL(i2c_get_adapter);