[PATCH] ISDN: fix a few memory leaks in sc_ioctl()

Fix a few memory leaks in drivers/isdn/sc/ioctl.c::sc_ioctl()

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>