commit 2603bf219e9bef3396b96b65326de7db27958c95
author Kristian Høgsberg <krh@redhat.com> Wed Mar 07 12:12:48 2007 -0500
committer Stefan Richter <stefanr@s5r6.in-berlin.de> Fri Mar 09 22:03:11 2007 +0100
tree 1e18057a1a7e4f22c0b7eaec1b3330ad426cdb72
parent 2aaad97be6b58ae865f402fcd27d138e7346ff81

firewire: Use only a wait queue and terminate poll and read on device removal.

Drop the event list semaphore and only use the wait queue and the list
to synchronize queue access.  Break out of a poll or read whenever
the device is disconnected.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

drivers/firewire/fw-device.h

diff --git a/drivers/firewire/fw-device.h b/drivers/firewire/fw-device.h
index 1a3655b..ba0e246 100644
--- a/drivers/firewire/fw-device.h
+++ b/drivers/firewire/fw-device.h
@@ -53,11 +53,18 @@
 	return container_of(dev, struct fw_device, device);
 }
 
+static inline int
+fw_device_is_shutdown(struct fw_device *device)
+{
+	return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
+}
+
 struct fw_device *fw_device_get(struct fw_device *device);
 void fw_device_put(struct fw_device *device);
 int fw_device_enable_phys_dma(struct fw_device *device);
 
 void fw_device_cdev_update(struct fw_device *device);
+void fw_device_cdev_remove(struct fw_device *device);
 
 struct fw_device *fw_device_from_devt(dev_t devt);
 extern int fw_cdev_major;