diff options
| author | Joerg Roedel | 2009-04-24 14:57:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2009-06-15 21:30:24 -0700 |
| commit | 309b7d60a345f402bec3cf9caadb53de4028e2aa (patch) | |
| tree | 1e3a493c6c042155af67e062ac3f722b2cc4c6bd /drivers/base | |
| parent | 6acf70f078ca42a63397b8b84bf6383b01303009 (diff) | |
driver core: add BUS_NOTIFY_UNBOUND_DRIVER event
This patch adds a new bus notifier event which is emitted _after_ a
device is removed from its driver. This event will be used by the
dma-api debug code to check if a driver has released all dma allocations
for that device.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/dd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 742cbe6b042b..efd00de183b1 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -320,6 +320,10 @@ static void __device_release_driver(struct device *dev) devres_release_all(dev); dev->driver = NULL; klist_remove(&dev->p->knode_driver); + if (dev->bus) + blocking_notifier_call_chain(&dev->bus->p->bus_notifier, + BUS_NOTIFY_UNBOUND_DRIVER, + dev); } } |