[PATCH 3/4] lguest: do not statically allocate root device

Mark McLoughlin
2008-12-15T13:00:10Z

We shouldn't be statically allocating the root device object,
so dynamically allocate it using root_device_register()
instead.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
---
drivers/lguest/lguest_device.c | 10 ++++------
1 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
index 915da6b..b4d44e5 100644
--- a/drivers/lguest/lguest_device.c
+++ b/drivers/lguest/lguest_device.c
@@ -321,10 +321,7 @@ static struct virtio_config_ops lguest_config_ops = {

/* The root device for the lguest virtio devices. This makes them appear as
* /sys/devices/lguest/0,1,2 not /sys/devices/0,1,2. */
-static struct device lguest_root = {
- .parent = NULL,
- .bus_id = "lguest",
-};
+static struct device *lguest_root;

/*D:120 This is the core of the lguest bus: actually adding a new device.
* It's a separate function because it's neater that way, and because an
@@ -351,7 +348,7 @@ static void add_lguest_device(struct lguest_device_desc *d,
}

/* This devices' parent is the lguest/ dir. */
- ldev->vdev.dev.parent = &lguest_root;
+ ldev->vdev.dev.parent = lguest_root;
/* We have a unique device index thanks to the dev_index counter. */
ldev->vdev.id.device = d->type;
/* We have a simple set of routines for querying the device's
@@ -407,7 +404,8 @@ static int __init lguest_devices_init(void)
if (strcmp(pv_info.name, "lguest") != 0)
return 0;

- if (device_register(&lguest_root) != 0)
+ lguest_root = root_device_register("lguest");
+ if (IS_ERR(lguest_root))
panic("Could not register lguest root");

/* Devices are in a single page above top of "normal" mem */
--
1.5.4.3