[PATCH] ibmasm driver: correctly wake up sleeping threads
Due to my incomplete understanding of the wait_event_interruptible() function
threads waiting for service processor events were not woken up. This patch
fixes that problem.
Signed-off-by: Max Asbock <masbock@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/misc/ibmasm/ibmasm.h b/drivers/misc/ibmasm/ibmasm.h
index 1e83406..35c4def 100644
--- a/drivers/misc/ibmasm/ibmasm.h
+++ b/drivers/misc/ibmasm/ibmasm.h
@@ -108,6 +108,7 @@
};
struct event_reader {
+ int cancelled;
unsigned int next_serial_number;
wait_queue_head_t wait;
struct list_head node;
@@ -185,6 +186,7 @@
extern void ibmasm_event_reader_register(struct service_processor *sp, struct event_reader *reader);
extern void ibmasm_event_reader_unregister(struct service_processor *sp, struct event_reader *reader);
extern int ibmasm_get_next_event(struct service_processor *sp, struct event_reader *reader);
+extern void ibmasm_cancel_next_event(struct event_reader *reader);
/* heartbeat - from SP to OS */
extern void ibmasm_register_panic_notifier(void);