[PATCH] pcmcia: fix task state at pccard thread exit

The pccardd thread has a race in it that it can shutdown in the
TASK_INTERRUPTIBLE state.

Make sure we mark ourselves runnable again as we remove ourselves from
the wait queue.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>