Commit 3a7c3277 authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'mfd-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD fixes from Lee Jones:

 - fix double free

 - handle devicetree disabled devices gracefully

* tag 'mfd-fixes-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: mfd-core: Ensure disabled devices are ignored without error
  mfd: core: Fix double-free in mfd_remove_devices_fn()
parents 5ec06b5c 22380b65
......@@ -126,10 +126,6 @@ static int mfd_match_of_node_to_dev(struct platform_device *pdev,
const __be32 *reg;
u64 of_node_addr;
/* Skip devices 'disabled' by Device Tree */
if (!of_device_is_available(np))
return -ENODEV;
/* Skip if OF node has previously been allocated to a device */
list_for_each_entry(of_entry, &mfd_of_node_list, list)
if (of_entry->np == np)
......@@ -212,6 +208,12 @@ static int mfd_add_device(struct device *parent, int id,
if (IS_ENABLED(CONFIG_OF) && parent->of_node && cell->of_compatible) {
for_each_child_of_node(parent->of_node, np) {
if (of_device_is_compatible(np, cell->of_compatible)) {
/* Ignore 'disabled' devices error free */
if (!of_device_is_available(np)) {
ret = 0;
goto fail_alias;
}
ret = mfd_match_of_node_to_dev(pdev, np, cell);
if (ret == -EAGAIN)
continue;
......@@ -370,8 +372,6 @@ static int mfd_remove_devices_fn(struct device *dev, void *data)
regulator_bulk_unregister_supply_alias(dev, cell->parent_supplies,
cell->num_parent_supplies);
kfree(cell);
platform_device_unregister(pdev);
return 0;
}
......
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