[PATCH 6/8] dm: allow slashes in dm device names

[Joe Thornber]

Allow slashes ('/') within a DM device name, but not at the beginning.

Devfs will automatically create all necessary sub-directories if a name
with embedded slashes is registered.  [Kevin Corry]

--- diff/drivers/md/dm-ioctl.c	2003-02-26 16:09:57.000000000 +0000
+++ source/drivers/md/dm-ioctl.c	2003-02-26 16:10:07.000000000 +0000
@@ -545,7 +545,7 @@
 
 static int check_name(const char *name)
 {
-	if (strchr(name, '/')) {
+	if (name[0] == '/') {
 		DMWARN("invalid device name");
 		return -EINVAL;
 	}