mirror of https://gitee.com/openkylin/linux.git
[PATCH] I2C: remove devfs support from i2c-dev driver
as devfs is gone, this isn't needed anymore. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -26,15 +26,11 @@
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/* The I2C_RDWR ioctl code is written by Kolja Waschk <waschk@telos.de> */
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/* The devfs code is contributed by Philipp Matthias Hahn
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<pmhahn@titan.lahn.de> */
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/fs.h>
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#include <linux/slab.h>
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#include <linux/smp_lock.h>
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#include <linux/devfs_fs_kernel.h>
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#include <linux/init.h>
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#include <linux/i2c.h>
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#include <linux/i2c-dev.h>
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@ -431,8 +427,6 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
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if (IS_ERR(i2c_dev))
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return PTR_ERR(i2c_dev);
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devfs_mk_cdev(MKDEV(I2C_MAJOR, i2c_dev->minor),
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S_IFCHR|S_IRUSR|S_IWUSR, "i2c/%d", i2c_dev->minor);
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pr_debug("i2c-dev: adapter [%s] registered as minor %d\n",
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adap->name, i2c_dev->minor);
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@ -465,7 +459,6 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
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return -ENODEV;
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init_completion(&i2c_dev->released);
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devfs_remove("i2c/%d", i2c_dev->minor);
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return_i2c_dev(i2c_dev);
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class_device_unregister(&i2c_dev->class_dev);
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wait_for_completion(&i2c_dev->released);
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@ -521,8 +514,6 @@ static int __init i2c_dev_init(void)
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if (res)
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goto out_unreg_class;
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devfs_mk_dir("i2c");
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return 0;
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out_unreg_class:
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@ -538,7 +529,6 @@ static void __exit i2c_dev_exit(void)
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{
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i2c_del_driver(&i2cdev_driver);
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class_unregister(&i2c_dev_class);
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devfs_remove("i2c");
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unregister_chrdev(I2C_MAJOR,"i2c");
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}
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