[Patch] [mm] Fix bus_rescan_devices() in -mm

[Cornelia Huck <cornelia.huck@de.ibm.com>]

With the __must_check changes in the driver core,
bus_rescan_devices_helper() now returns the return code of its call to
device_attach(). device_attach() will return < 0 on error, 0 on no
match and 1 on match. This means that bus_rescan_devices() will stop
after the first successful match for a device, which is probably not
what we want. Stopping on error makes sense, however.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>

 bus.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -Naurp linux-2.6.18-rc1-mm2/drivers/base/bus.c linux-2.6.18-rc1-mm2+CH/drivers/base/bus.c
--- linux-2.6.18-rc1-mm2/drivers/base/bus.c	2006-07-17 18:15:37.000000000 +0200
+++ linux-2.6.18-rc1-mm2+CH/drivers/base/bus.c	2006-07-17 18:17:51.000000000 +0200
@@ -572,7 +572,7 @@ static int __must_check bus_rescan_devic
 		if (dev->parent)
 			up(&dev->parent->sem);
 	}
-	return ret;
+	return ret < 0 ? ret : 0;
 }
 
 /**