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firewire: add parent-of-unit accessor

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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>
This commit is contained in:
Stefan Richter
2009-06-06 18:35:27 +02:00
parent e71d31da06
commit e5110d011e
3 changed files with 28 additions and 18 deletions
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4
drivers/firewire/core-device.c
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@@ -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;