X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finput%2Fgameport%2Fgameport.c;h=caac6d63d46f4a7da7ffc70293aad635d7c6bb37;hb=9e50afd0cb3ff9ee152dbcf8601f5fb7eba5cff8;hp=ab09cf4093e32595cbd84824db790e73f91d2881;hpb=717cb906bd43a9ac00631d600adda5c6546843a6;p=linux-2.6

diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index ab09cf4093..caac6d63d4 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <linux/sched.h>	/* HZ */
 
 /*#include <asm/io.h>*/
 
@@ -338,14 +339,20 @@ static struct gameport_event *gameport_get_event(void)
 	return event;
 }
 
-static void gameport_handle_events(void)
+static void gameport_handle_event(void)
 {
 	struct gameport_event *event;
 	struct gameport_driver *gameport_drv;
 
 	down(&gameport_sem);
 
-	while ((event = gameport_get_event())) {
+	/*
+	 * Note that we handle only one event here to give swsusp
+	 * a chance to freeze kgameportd thread. Gameport events
+	 * should be pretty rare so we are not concerned about
+	 * taking performance hit.
+	 */
+	if ((event = gameport_get_event())) {
 
 		switch (event->type) {
 			case GAMEPORT_REGISTER_PORT:
@@ -432,7 +439,7 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent)
 static int gameport_thread(void *nothing)
 {
 	do {
-		gameport_handle_events();
+		gameport_handle_event();
 		wait_event_interruptible(gameport_wait,
 			kthread_should_stop() || !list_empty(&gameport_event_list));
 		try_to_freeze();