fs: fix name overwrite in __register_chrdev_region()

It's possible to register a chrdev with a name size exactly the same as
was allocated in structure.  It seems it was not intended behaviour.

At least chrdev_show does not like it.

Signed-off-by: Cyrill Gorcunov <[email protected]>
Cc: Al Viro <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

Author: cyrillos

fs/char_dev.c

@@ -120,7 +120,7 @@ __register_chrdev_region(unsigned int major, unsigned int baseminor,
 	cd->major = major;
 	cd->baseminor = baseminor;
 	cd->minorct = minorct;
-	strncpy(cd->name,name, 64);
+	strlcpy(cd->name, name, sizeof(cd->name));
 
 	i = major_to_index(major);