[PATCH] uml: remove unused variable

The dedevfsification of UML left an unused variable behind.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/um/drivers/ubd_kern.c

@@ -627,7 +627,6 @@ static int ubd_new_disk(int major, u64 size, int unit,
 			
 {
 	struct gendisk *disk;
-	int err;
 
 	disk = alloc_disk(1 << UBD_SHIFT);
 	if(disk == NULL)