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authorStefan Richter <stefanr@s5r6.in-berlin.de>2011-08-27 18:53:03 +0200
committerStefan Richter <stefanr@s5r6.in-berlin.de>2012-01-15 18:37:20 +0100
commit210762268466634ddbfaddb48fdf5181ce4b5f2d (patch)
tree8c07da360066158aa48f450dfeb593ed9ed76d0f /drivers/firewire/core-device.c
parent2ca526bf4953380abfe5dff455e356967b239c70 (diff)
firewire: move fw_device reference counting from drivers to core
fw_unit device drivers invariably need to talk to the fw_unit's parent (an fw_device) and grandparent (an fw_card). firewire-core already maintains an fw_card reference for the entire lifetime of an fw_device. Likewise, let firewire-core maintain an fw_device reference for the entire lifetime of an fw_unit so that fw_unit drivers don't have to. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire/core-device.c')
-rw-r--r--drivers/firewire/core-device.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index f3b890da1e87..4c6c7d8cdaf1 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -641,6 +641,7 @@ static void fw_unit_release(struct device *dev)
{
struct fw_unit *unit = fw_unit(dev);
+ fw_device_put(fw_parent_device(unit));
kfree(unit);
}
@@ -692,6 +693,7 @@ static void create_units(struct fw_device *device)
if (device_register(&unit->device) < 0)
goto skip_unit;
+ fw_device_get(device);
continue;
skip_unit: