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path: root/drivers/i2c/i2c-dev.c
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Diffstat (limited to 'drivers/i2c/i2c-dev.c')
-rw-r--r--drivers/i2c/i2c-dev.c17
1 files changed, 3 insertions, 14 deletions
diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index aa7a4fadef6..ea14c8f1c82 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -26,15 +26,11 @@
/* The I2C_RDWR ioctl code is written by Kolja Waschk <waschk@telos.de> */
-/* The devfs code is contributed by Philipp Matthias Hahn
- <pmhahn@titan.lahn.de> */
-
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
-#include <linux/devfs_fs_kernel.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
@@ -80,10 +76,9 @@ static struct i2c_dev *get_free_i2c_dev(struct i2c_adapter *adap)
{
struct i2c_dev *i2c_dev;
- i2c_dev = kmalloc(sizeof(*i2c_dev), GFP_KERNEL);
+ i2c_dev = kzalloc(sizeof(*i2c_dev), GFP_KERNEL);
if (!i2c_dev)
return ERR_PTR(-ENOMEM);
- memset(i2c_dev, 0x00, sizeof(*i2c_dev));
spin_lock(&i2c_dev_array_lock);
if (i2c_dev_array[adap->nr]) {
@@ -177,8 +172,8 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
int i,datasize,res;
unsigned long funcs;
- dev_dbg(&client->adapter->dev, "i2c-%d ioctl, cmd: 0x%x, arg: %lx.\n",
- iminor(inode),cmd, arg);
+ dev_dbg(&client->adapter->dev, "ioctl, cmd=0x%02x, arg=0x%02lx\n",
+ cmd, arg);
switch ( cmd ) {
case I2C_SLAVE:
@@ -432,8 +427,6 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
if (IS_ERR(i2c_dev))
return PTR_ERR(i2c_dev);
- devfs_mk_cdev(MKDEV(I2C_MAJOR, i2c_dev->minor),
- S_IFCHR|S_IRUSR|S_IWUSR, "i2c/%d", i2c_dev->minor);
pr_debug("i2c-dev: adapter [%s] registered as minor %d\n",
adap->name, i2c_dev->minor);
@@ -466,7 +459,6 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
return -ENODEV;
init_completion(&i2c_dev->released);
- devfs_remove("i2c/%d", i2c_dev->minor);
return_i2c_dev(i2c_dev);
class_device_unregister(&i2c_dev->class_dev);
wait_for_completion(&i2c_dev->released);
@@ -522,8 +514,6 @@ static int __init i2c_dev_init(void)
if (res)
goto out_unreg_class;
- devfs_mk_dir("i2c");
-
return 0;
out_unreg_class:
@@ -539,7 +529,6 @@ static void __exit i2c_dev_exit(void)
{
i2c_del_driver(&i2cdev_driver);
class_unregister(&i2c_dev_class);
- devfs_remove("i2c");
unregister_chrdev(I2C_MAJOR,"i2c");
}