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unregister_chrdev() return void

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unregister_chrdev() does not return meaningful value.  This patch makes it
return void like most unregister_* functions.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2007-07-19 01:47:51 -07:00 committed by Linus Torvalds
parent 68fc4fabca
commit e53252d97e
2 changed files with 2 additions and 3 deletions
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3
fs/char_dev.c
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@ -321,14 +321,13 @@ void unregister_chrdev_region(dev_t from, unsigned count)
}
}
int unregister_chrdev(unsigned int major, const char *name)
void unregister_chrdev(unsigned int major, const char *name)
{
struct char_device_struct *cd;
cd = __unregister_chrdev_region(major, 0, 256);
if (cd && cd->cdev)
cdev_del(cd->cdev);
kfree(cd);
return 0;
}
static DEFINE_SPINLOCK(cdev_lock);

2
include/linux/fs.h
View File

@ -1463,7 +1463,7 @@ extern int alloc_chrdev_region(dev_t *, unsigned, unsigned, const char *);
extern int register_chrdev_region(dev_t, unsigned, const char *);
extern int register_chrdev(unsigned int, const char *,
const struct file_operations *);
extern int unregister_chrdev(unsigned int, const char *);
extern void unregister_chrdev(unsigned int, const char *);
extern void unregister_chrdev_region(dev_t, unsigned);
extern int chrdev_open(struct inode *, struct file *);
extern void chrdev_show(struct seq_file *,off_t);