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 (file)
--- a/drivers/staging/vme/vme.c
+++ b/drivers/staging/vme/vme.c
@@ -1338,6 +1338,11 @@ static void vme_remove_bus(struct vme_bridge *bridge)
        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 @@ int vme_register_bridge(struct vme_bridge *bridge)
         * 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 @@ int vme_register_bridge(struct vme_bridge *bridge)
        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 @@ void vme_unregister_bridge(struct vme_bridge *bridge)
 
 
        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 @@ static int vme_calc_slot(struct device *dev)
        /* 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 (file)
--- a/drivers/staging/vme/vme_bridge.h
+++ b/drivers/staging/vme/vme_bridge.h
@@ -114,7 +114,7 @@ struct vme_bridge {
        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
                                                 */