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Commit e53252d9 authored by Akinobu Mita's avatar Akinobu Mita Committed by Linus Torvalds
Browse files

unregister_chrdev() return void 



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

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 68fc4fab

fs/char_dev.c

+1 −2
Original line number Diff line number Diff line
@@ -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);

include/linux/fs.h

+1 −1
Original line number Diff line number Diff line
@@ -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);