ieee1394: forgotten dereference...

Going through the string and waiting for _pointer_ to become '\0'
is not what the authors meant...

Signed-off-by: Al Viro <[e-mail]>
Acked-by: Ben Collins <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/ieee1394/nodemgr.c

···
 	memcpy(buf,							\
 	       CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(class->td_kv),	\
 	       len);							\
-	while ((buf + len - 1) == '\0')					\
+	while (buf[len - 1] == '\0')					\
 		len--;							\
 	buf[len++] = '\n';						\
 	buf[len] = '\0';						\