From: Ming Lei <tom.leiming@gmail.com>
Date: Fri, 27 Mar 2009 13:50:00 +0000 (+0800)
Subject: driver core: fix driver_match_device
X-Git-Tag: v2.6.30-rc3~59^2~8
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=5247aecfe62266ffdedf2fc9e4243638554455b6

driver core: fix driver_match_device

This patch fixes a bug introduced in commit
49b420a13ff95b449947181190b08367348e3e1b.

If a instance of bus_type doesn't have  .match method,
all .probe of drivers in the bus should be called, or else
the .probe have not a chance to be called.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reported-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/base/base.h b/drivers/base/base.h
index ddc97496db4a..b528145a078f 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -115,7 +115,7 @@ extern int driver_probe_device(struct device_driver *drv, struct device *dev);
 static inline int driver_match_device(struct device_driver *drv,
 				      struct device *dev)
 {
-	return drv->bus->match && drv->bus->match(dev, drv);
+	return drv->bus->match ? drv->bus->match(dev, drv) : 1;
 }
 
 extern void sysdev_shutdown(void);