From: Chris Bostic <cbostic@xxxxxxxxxx>
Master will remove all previously scanned devices during an
unregister operation. This will be necessary should any master
attempt to register more than once.
Signed-off-by: Chris Bostic <cbostic@xxxxxxxxxx>
---
V2 - Remove list heads and explicit master device list management
int the fsi master and fsi slave structs. Instead utilize the
device_for_each_child method already available.
---
drivers/fsi/fsi-core.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index af7965f..28b82d1 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -428,12 +428,26 @@ int fsi_master_register(struct fsi_master *master)
}
EXPORT_SYMBOL_GPL(fsi_master_register);
+static int fsi_slave_device_remove(struct device *dev, void *data)
+{
+ put_device(dev);
+ return 0;
+}
+
+static int fsi_master_slave_remove(struct device *dev, void *data)
+{
+ device_for_each_child(dev, NULL, fsi_slave_device_remove);
+ device_unregister(dev);
+ return 0;
+}
+
void fsi_master_unregister(struct fsi_master *master)
{
if (!master || !master->dev)
return;
ida_simple_remove(&master_ida, master->idx);
+ device_for_each_child(master->dev, NULL, fsi_master_slave_remove);
put_device(master->dev);
}
EXPORT_SYMBOL_GPL(fsi_master_unregister);
--
1.8.2.2
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