staging: vme: change static device array to pointers
Change the static array of 'struct device''s in struct vme_bridge
to instead use an array of pointers. This is in accordance with the
requirement that all kobjects be dynamically allocated (see
Documentation/kobject.txt) and never be statically allocated.
Signed-off-by: Manohar Vanga <manohar.vanga@cern.ch>
Acked-by: Martyn Welch <martyn.welch@ge.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/vme/vme.c b/drivers/staging/vme/vme.c
index b2968f8..63a8fa2 100644
--- a/drivers/staging/vme/vme.c
+++ b/drivers/staging/vme/vme.c
@@ -1338,6 +1338,11 @@
mutex_unlock(&vme_buses_lock);
}
+static void vme_dev_release(struct device *dev)
+{
+ kfree(dev);
+}
+
int vme_register_bridge(struct vme_bridge *bridge)
{
struct device *dev;
@@ -1353,11 +1358,17 @@
* specification.
*/
for (i = 0; i < VME_SLOTS_MAX; i++) {
- dev = &bridge->dev[i];
+ bridge->dev[i] = kzalloc(sizeof(struct device), GFP_KERNEL);
+ if (!bridge->dev[i]) {
+ retval = -ENOMEM;
+ goto err_devalloc;
+ }
+ dev = bridge->dev[i];
memset(dev, 0, sizeof(struct device));
dev->parent = bridge->parent;
dev->bus = &vme_bus_type;
+ dev->release = vme_dev_release;
/*
* We save a pointer to the bridge in platform_data so that we
* can get to it later. We keep driver_data for use by the
@@ -1374,8 +1385,10 @@
return retval;
err_reg:
+ kfree(dev);
+err_devalloc:
while (--i >= 0) {
- dev = &bridge->dev[i];
+ dev = bridge->dev[i];
device_unregister(dev);
}
vme_remove_bus(bridge);
@@ -1390,7 +1403,7 @@
for (i = 0; i < VME_SLOTS_MAX; i++) {
- dev = &bridge->dev[i];
+ dev = bridge->dev[i];
device_unregister(dev);
}
vme_remove_bus(bridge);
@@ -1427,7 +1440,7 @@
/* Determine slot number */
num = 0;
while (num < VME_SLOTS_MAX) {
- if (&bridge->dev[num] == dev)
+ if (bridge->dev[num] == dev)
break;
num++;
diff --git a/drivers/staging/vme/vme_bridge.h b/drivers/staging/vme/vme_bridge.h
index 8959670..4b8566e 100644
--- a/drivers/staging/vme/vme_bridge.h
+++ b/drivers/staging/vme/vme_bridge.h
@@ -114,7 +114,7 @@
void *driver_priv; /* Private pointer for the bridge driver */
struct list_head bus_list; /* list of VME buses */
- struct device dev[VME_SLOTS_MAX]; /* Device registered with
+ struct device *dev[VME_SLOTS_MAX]; /* Device registered with
* device model on VME bus
*/