tpm: don't use flush_scheduled_work()

flush_scheduled_work() is deprecated and scheduled to be removed.
Directly flush chip->work instead.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 7c41335..0b3af3f 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -986,7 +986,7 @@
 	struct tpm_chip *chip = file->private_data;
 
 	del_singleshot_timer_sync(&chip->user_read_timer);
-	flush_scheduled_work();
+	flush_work_sync(&chip->work);
 	file->private_data = NULL;
 	atomic_set(&chip->data_pending, 0);
 	kfree(chip->data_buffer);
@@ -1038,7 +1038,7 @@
 	ssize_t ret_size;
 
 	del_singleshot_timer_sync(&chip->user_read_timer);
-	flush_scheduled_work();
+	flush_work_sync(&chip->work);
 	ret_size = atomic_read(&chip->data_pending);
 	atomic_set(&chip->data_pending, 0);
 	if (ret_size > 0) {	/* relay data */