From 216773a787c3c46ef26bf1742c1fdba37d26be45 Mon Sep 17 00:00:00 2001
From: Arjan van de Ven <arjan@linux.intel.com>
Date: Sat, 14 Feb 2009 01:59:06 +0100
Subject: Consolidate driver_probe_done() loops into one place

there's a few places that currently loop over driver_probe_done(), and
I'm about to add another one. This patch abstracts it into a helper
to reduce duplication.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <lenb@kernel.org>
Acked-by: Greg KH <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/base/dd.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'drivers/base')

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 315bed8d5e7..13523123910 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -18,9 +18,11 @@
  */
 
 #include <linux/device.h>
+#include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/kthread.h>
 #include <linux/wait.h>
+#include <linux/async.h>
 
 #include "base.h"
 #include "power/power.h"
@@ -167,6 +169,21 @@ int driver_probe_done(void)
 	return 0;
 }
 
+/**
+ * wait_for_device_probe
+ * Wait for device probing to be completed.
+ *
+ * Note: this function polls at 100 msec intervals.
+ */
+int wait_for_device_probe(void)
+{
+	/* wait for the known devices to complete their probing */
+	while (driver_probe_done() != 0)
+		msleep(100);
+	async_synchronize_full();
+	return 0;
+}
+
 /**
  * driver_probe_device - attempt to bind device & driver together
  * @drv: driver to bind a device to
-- 
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