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authorGrant Likely <grant.likely@secretlab.ca>2010-01-28 15:52:53 -0500
committerGrant Likely <grant.likely@secretlab.ca>2010-01-28 15:52:53 -0500
commit923f7e30b480438f1e86e01e5cde814248b59a39 (patch)
treead9cb0e701b0a8ef2ac5113fbd4a42118039edd6 /arch/microblaze
parent1f43cfb9474d1c4f22598b6e3213ec035be6dd56 (diff)
of: Merge of_node_get() and of_node_put()
Merge common code between PowerPC and MicroBlaze Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/kernel/prom.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 16a001c71e2e..46407e643926 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -350,80 +350,6 @@ struct device_node *of_find_node_by_phandle(phandle handle)
350} 350}
351EXPORT_SYMBOL(of_find_node_by_phandle); 351EXPORT_SYMBOL(of_find_node_by_phandle);
352 352
353/**
354 * of_node_get - Increment refcount of a node
355 * @node: Node to inc refcount, NULL is supported to
356 * simplify writing of callers
357 *
358 * Returns node.
359 */
360struct device_node *of_node_get(struct device_node *node)
361{
362 if (node)
363 kref_get(&node->kref);
364 return node;
365}
366EXPORT_SYMBOL(of_node_get);
367
368static inline struct device_node *kref_to_device_node(struct kref *kref)
369{
370 return container_of(kref, struct device_node, kref);
371}
372
373/**
374 * of_node_release - release a dynamically allocated node
375 * @kref: kref element of the node to be released
376 *
377 * In of_node_put() this function is passed to kref_put()
378 * as the destructor.
379 */
380static void of_node_release(struct kref *kref)
381{
382 struct device_node *node = kref_to_device_node(kref);
383 struct property *prop = node->properties;
384
385 /* We should never be releasing nodes that haven't been detached. */
386 if (!of_node_check_flag(node, OF_DETACHED)) {
387 printk(KERN_INFO "WARNING: Bad of_node_put() on %s\n",
388 node->full_name);
389 dump_stack();
390 kref_init(&node->kref);
391 return;
392 }
393
394 if (!of_node_check_flag(node, OF_DYNAMIC))
395 return;
396
397 while (prop) {
398 struct property *next = prop->next;
399 kfree(prop->name);
400 kfree(prop->value);
401 kfree(prop);
402 prop = next;
403
404 if (!prop) {
405 prop = node->deadprops;
406 node->deadprops = NULL;
407 }
408 }
409 kfree(node->full_name);
410 kfree(node->data);
411 kfree(node);
412}
413
414/**
415 * of_node_put - Decrement refcount of a node
416 * @node: Node to dec refcount, NULL is supported to
417 * simplify writing of callers
418 *
419 */
420void of_node_put(struct device_node *node)
421{
422 if (node)
423 kref_put(&node->kref, of_node_release);
424}
425EXPORT_SYMBOL(of_node_put);
426
427/* 353/*
428 * Plug a device node into the tree and global list. 354 * Plug a device node into the tree and global list.
429 */ 355 */