diff --git a/ChangeLog b/ChangeLog index ac13db5d28..69b184dc99 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +Tue May 19 09:24:54 EDT 2009 Cole Robinson + + * src/node_device_hal.c: Fix a possible deadlock in HAL nodedev + driver. + Tue May 19 09:22:43 EDT 2009 Cole Robinson * Makefile.am: Fix rpm build: add 'mylibtool' to EXTRADIST. diff --git a/src/node_device_hal.c b/src/node_device_hal.c index b214f6030a..e9ea163b98 100644 --- a/src/node_device_hal.c +++ b/src/node_device_hal.c @@ -462,6 +462,26 @@ cleanup: nodeDeviceUnlock(driverState); } +static void dev_refresh(const char *udi) +{ + const char *name = hal_name(udi); + virNodeDeviceObjPtr dev; + + nodeDeviceLock(driverState); + dev = virNodeDeviceFindByName(&driverState->devs, name); + if (dev) { + /* Simply "rediscover" device -- incrementally handling changes + * to sub-capabilities (like net.80203) is nasty ... so avoid it. + */ + virNodeDeviceObjRemove(&driverState->devs, dev); + } else + DEBUG("no device named %s", name); + nodeDeviceUnlock(driverState); + + if (dev) { + dev_create(udi); + } +} static void device_added(LibHalContext *ctx ATTRIBUTE_UNUSED, const char *udi) @@ -512,20 +532,9 @@ static void device_cap_lost(LibHalContext *ctx ATTRIBUTE_UNUSED, const char *cap) { const char *name = hal_name(udi); - virNodeDeviceObjPtr dev; - - nodeDeviceLock(driverState); - dev = virNodeDeviceFindByName(&driverState->devs,name); DEBUG("%s %s", cap, name); - if (dev) { - /* Simply "rediscover" device -- incrementally handling changes - * to sub-capabilities (like net.80203) is nasty ... so avoid it. - */ - virNodeDeviceObjRemove(&driverState->devs, dev); - dev_create(udi); - } else - DEBUG("no device named %s", name); - nodeDeviceUnlock(driverState); + + dev_refresh(udi); } @@ -536,21 +545,9 @@ static void device_prop_modified(LibHalContext *ctx ATTRIBUTE_UNUSED, dbus_bool_t is_added ATTRIBUTE_UNUSED) { const char *name = hal_name(udi); - virNodeDeviceObjPtr dev; + DEBUG("%s %s", name, key); - nodeDeviceLock(driverState); - dev = virNodeDeviceFindByName(&driverState->devs,name); - DEBUG("%s %s", key, name); - if (dev) { - /* Simply "rediscover" device -- incrementally handling changes - * to properties (which are mapped into caps in very capability- - * specific ways) is nasty ... so avoid it. - */ - virNodeDeviceObjRemove(&driverState->devs, dev); - dev_create(udi); - } else - DEBUG("no device named %s", name); - nodeDeviceUnlock(driverState); + dev_refresh(udi); }