rt2x00: Add suspend/resume handlers to rt2x00rfkill

Add suspend/resume handlers to rt2x00rfkill to have it stop
the input-polldev and prevent it from calling rt2x00 during
suspend period. This could lead to a NULL pointer fault when
rt2x00 suspended, but polldev send a request, because
the csr_addr is NULL.

Also don't let the rfkill allocation/registration block
the initialization of the entire device. Just print a warning
and continue as if nothing happened.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 05927b9..6c72542 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -620,6 +620,9 @@
 	 * This will only be compiled in when required.
 	 */
 #ifdef CONFIG_RT2X00_LIB_RFKILL
+unsigned long rfkill_state;
+#define RFKILL_STATE_ALLOCATED		1
+#define RFKILL_STATE_REGISTERED		2
 	struct rfkill *rfkill;
 	struct input_polled_dev *poll_dev;
 #endif /* CONFIG_RT2X00_LIB_RFKILL */