lkml.org 
[lkml]   [2008]   [Feb]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 10/10] Driver core: Remove unneeded get_{device,driver}() calls.
Date
From: Cornelia Huck <cornelia.huck@de.ibm.com>

Driver core: Remove unneeded get_{device,driver}() calls.

Code trying to add/remove attributes must hold a reference to
the device resp. driver anyway, so let's remove those reference
count games.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/base/core.c | 8 ++------
drivers/base/driver.c | 9 +++------
2 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index a0cfda5..9c0070b 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -423,10 +423,8 @@ struct kset *devices_kset;
int device_create_file(struct device *dev, struct device_attribute *attr)
{
int error = 0;
- if (get_device(dev)) {
+ if (dev)
error = sysfs_create_file(&dev->kobj, &attr->attr);
- put_device(dev);
- }
return error;
}

@@ -437,10 +435,8 @@ int device_create_file(struct device *dev, struct device_attribute *attr)
*/
void device_remove_file(struct device *dev, struct device_attribute *attr)
{
- if (get_device(dev)) {
+ if (dev)
sysfs_remove_file(&dev->kobj, &attr->attr);
- put_device(dev);
- }
}

/**
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index a35f041..ba75184 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -97,10 +97,9 @@ int driver_create_file(struct device_driver *drv,
struct driver_attribute *attr)
{
int error;
- if (get_driver(drv)) {
+ if (drv)
error = sysfs_create_file(&drv->p->kobj, &attr->attr);
- put_driver(drv);
- } else
+ else
error = -EINVAL;
return error;
}
@@ -114,10 +113,8 @@ EXPORT_SYMBOL_GPL(driver_create_file);
void driver_remove_file(struct device_driver *drv,
struct driver_attribute *attr)
{
- if (get_driver(drv)) {
+ if (drv)
sysfs_remove_file(&drv->p->kobj, &attr->attr);
- put_driver(drv);
- }
}
EXPORT_SYMBOL_GPL(driver_remove_file);

--
1.5.3.8


\
 
 \ /
  Last update: 2008-02-03 01:05    [W:0.945 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site