unregister_chrdev() return void

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>

2 files changed, 2 insertions, 3 deletions

diff --git a/fs/char_dev.c b/fs/char_dev.c
index 164a45cdaf5f..bbbf07baa145 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -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);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 9562a59b3703..75dd16efc9b6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -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);