Small cleanups for drivers/atm/zatm.c
 Get rid of unneeded cast of kmalloc() return value.
 Small whitespace/CodingStyle/formatting cleanup (since I was in there anyway).
Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>