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DeviceTree fixes for 4.17:

Browse source 
- Fix path to display timing binding
 
 - Fix some typos in interrupt-names and clock-names
 
 - Fix a resource leak on overlay removal
 
 - Add missing documentation for R8A77965 DMA, serial, and net
 
 - Cleanup sunxi pinctrl description
 
 - Add Kieback & Peter GmbH vendor prefix
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Merge tag 'devicetree-fixes-for-4.17' into dt/next to pick-up fixes
This commit is contained in:
Rob Herring 2018-05-14 19:40:20 -05:00
commit 9601000cd5
11 changed files with 42 additions and 18 deletions
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30
drivers/of/overlay.c
View file

@ -102,12 +102,28 @@ static DEFINE_IDR(ovcs_idr);
static BLOCKING_NOTIFIER_HEAD(overlay_notify_chain);
/**
* of_overlay_notifier_register() - Register notifier for overlay operations
* @nb: Notifier block to register
*
* Register for notification on overlay operations on device tree nodes. The
* reported actions definied by @of_reconfig_change. The notifier callback
* furthermore receives a pointer to the affected device tree node.
*
* Note that a notifier callback is not supposed to store pointers to a device
* tree node or its content beyond @OF_OVERLAY_POST_REMOVE corresponding to the
* respective node it received.
*/
int of_overlay_notifier_register(struct notifier_block *nb)
{
return blocking_notifier_chain_register(&overlay_notify_chain, nb);
}
EXPORT_SYMBOL_GPL(of_overlay_notifier_register);
/**
* of_overlay_notifier_register() - Unregister notifier for overlay operations
* @nb: Notifier block to unregister
*/
int of_overlay_notifier_unregister(struct notifier_block *nb)
{
return blocking_notifier_chain_unregister(&overlay_notify_chain, nb);
@ -671,17 +687,13 @@ static void free_overlay_changeset(struct overlay_changeset *ovcs)
of_node_put(ovcs->fragments[i].overlay);
}
kfree(ovcs->fragments);
/*
* TODO
*
* would like to: kfree(ovcs->overlay_tree);
* but can not since drivers may have pointers into this data
*
* would like to: kfree(ovcs->fdt);
* but can not since drivers may have pointers into this data
* There should be no live pointers into ovcs->overlay_tree and
* ovcs->fdt due to the policy that overlay notifiers are not allowed
* to retain pointers into the overlay devicetree.
*/
kfree(ovcs->overlay_tree);
kfree(ovcs->fdt);
kfree(ovcs);
}