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PCI: rpaphp: Get/put device node reference during slot alloc/dealloc 

When allocating the slot structure we store a pointer to the associated
device_node.  We really should be incrementing the reference count, so add
an of_node_get() during slot alloc and an of_node_put() during slot
dealloc.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Tyrel Datwyler 2019-03-22 13:27:22 -05:00 committed by Bjorn Helgaas
parent fb26228bfc
commit 91800660bb
1 changed files with 2 additions and 1 deletions
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3
drivers/pci/hotplug/rpaphp_slot.c
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@ -21,6 +21,7 @@
/* free up the memory used by a slot */
void dealloc_slot_struct(struct slot *slot)
{
of_node_put(slot->dn);
kfree(slot->name);
kfree(slot);
}
@ -36,7 +37,7 @@ struct slot *alloc_slot_struct(struct device_node *dn,
slot->name = kstrdup(drc_name, GFP_KERNEL);
if (!slot->name)
goto error_slot;
slot->dn = dn;
slot->dn = of_node_get(dn);
slot->index = drc_index;
slot->power_domain = power_domain;
slot->hotplug_slot.ops = &rpaphp_hotplug_slot_ops;