linux-kernel - [PATCH 16/20] Staging: ipack: unregister devices when uninstall the carrier device.

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Date:	Mon, 10 Sep 2012 10:51:54 +0200
From:	Samuel Iglesias Gonsálvez 
	<siglesias@...lia.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	industrypack-devel@...ts.sourceforge.net,
	Samuel Iglesias Gonsálvez 
	<siglesias@...lia.com>
Subject: [PATCH 16/20] Staging: ipack: unregister devices when uninstall the carrier device.

Find the IP modules that are plugged to the carrier and unregister them.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@...lia.com>
---
 drivers/staging/ipack/ipack.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/staging/ipack/ipack.c b/drivers/staging/ipack/ipack.c
index b368a26..bf6a36d 100644
--- a/drivers/staging/ipack/ipack.c
+++ b/drivers/staging/ipack/ipack.c
@@ -228,8 +228,20 @@ struct ipack_bus_device *ipack_bus_register(struct device *parent, int slots,
 }
 EXPORT_SYMBOL_GPL(ipack_bus_register);
 
+static int ipack_unregister_bus_member(struct device *dev, void *data)
+{
+	struct ipack_device *idev = to_ipack_dev(dev);
+	struct ipack_bus_device *bus = data;
+
+	if (idev->bus_nr == bus->bus_nr)
+		ipack_device_unregister(idev);
+
+	return 1;
+}
+
 int ipack_bus_unregister(struct ipack_bus_device *bus)
 {
+	bus_for_each_dev(&ipack_bus_type, NULL, bus, ipack_unregister_bus_member);
 	ida_simple_remove(&ipack_ida, bus->bus_nr);
 	kfree(bus);
 	return 0;
-- 
1.7.10.4

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