[PATCH] rock: remove MAYBE_CONTINUE

- remove the MAYBE_CONTINUE macro

- kfree(NULL) is OK.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>