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PCI/hotplug: ppc: correct a php_slot usage after free 

In pnv_php_unregister_one(), pnv_php_put_slot() might kfree
php_slot structure. But there is pci_hp_deregister() after
that with php_slot reference.

This patch moves pnv_php_put_slot() to the end of function.

Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Simon Guo 2018-03-07 16:46:04 +08:00 committed by Michael Ellerman
parent 5ee573e8ef
commit 97c6f25d58
1 changed files with 1 additions and 1 deletions
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2
drivers/pci/hotplug/pnv_php.c
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@ -919,8 +919,8 @@ static void pnv_php_unregister_one(struct device_node *dn)
return;
php_slot->state = PNV_PHP_STATE_OFFLINE;
pnv_php_put_slot(php_slot);
pci_hp_deregister(&php_slot->slot);
pnv_php_put_slot(php_slot);
}
static void pnv_php_unregister(struct device_node *dn)