firewire: add parent-of-unit accessor

Retrieval of an fw_unit's parent is a common pattern in high-level code.
Wrap it up as device = fw_parent_device(unit).

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/firewire/core-device.c b/drivers/firewire/core-device.c
index 65d84dd6c1de..3f4e646367b7 100644
--- a/drivers/firewire/core-device.c
+++ b/drivers/firewire/core-device.c
@@ -93,7 +93,7 @@ static int fw_unit_match(struct device *dev, struct device_driver *drv)
         if (!is_fw_unit(dev))
                 return 0;
 
-        device = fw_device(unit->device.parent);
+        device = fw_parent_device(unit);
         id = container_of(drv, struct fw_driver, driver)->id_table;
 
         for (; id->match_flags != 0; id++) {
@@ -114,7 +114,7 @@ static int fw_unit_match(struct device *dev, struct device_driver *drv)
 
 static int get_modalias(struct fw_unit *unit, char *buffer, size_t buffer_size)
 {
-        struct fw_device *device = fw_device(unit->device.parent);
+        struct fw_device *device = fw_parent_device(unit);
         struct fw_csr_iterator ci;
 
         int key, value;