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qdev: factor out driver search to qdev_find_info() 

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Gerd Hoffmann 2009-07-15 13:43:32 +02:00 committed by Anthony Liguori
parent 15239b2e52
commit 81ebb98b24
1 changed files with 15 additions and 7 deletions
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22
hw/qdev.c
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@ -46,6 +46,20 @@ void qdev_register(DeviceInfo *info)
device_info_list = info;
}
static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name)
{
DeviceInfo *info;
for (info = device_info_list; info != NULL; info = info->next) {
if (bus_info && info->bus_info != bus_info)
continue;
if (strcmp(info->name, name) != 0)
continue;
return info;
}
return NULL;
}
/* Create a new device. This only initializes the device state structure
and allows properties to be set. qdev_init should be called to
initialize the actual device emulation. */
@ -61,13 +75,7 @@ DeviceState *qdev_create(BusState *bus, const char *name)
bus = main_system_bus;
}
for (info = device_info_list; info != NULL; info = info->next) {
if (info->bus_info != bus->info)
continue;
if (strcmp(info->name, name) != 0)
continue;
break;
}
info = qdev_find_info(bus->info, name);
if (!info) {
hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name);
}