memstick: add memstick_suspend/resume_host methods

Bus driver may need to be informed that host is being suspended/resumed.

Signed-off-by: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
index 5b5bd61..8b1c102 100644
--- a/drivers/memstick/host/tifm_ms.c
+++ b/drivers/memstick/host/tifm_ms.c
@@ -627,17 +627,17 @@
 
 static int tifm_ms_suspend(struct tifm_dev *sock, pm_message_t state)
 {
+	struct memstick_host *msh = tifm_get_drvdata(sock);
+
+	memstick_suspend_host(msh);
 	return 0;
 }
 
 static int tifm_ms_resume(struct tifm_dev *sock)
 {
 	struct memstick_host *msh = tifm_get_drvdata(sock);
-	struct tifm_ms *host = memstick_priv(msh);
 
-	tifm_ms_initialize_host(host);
-	memstick_detect_change(msh);
-
+	memstick_resume_host(msh);
 	return 0;
 }