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PCI: pnv_php: Use kmemdup() 

Use kmemdup() rather than duplicating its implementation.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
YueHaibing 2018-09-27 06:52:21 +00:00 committed by Bjorn Helgaas
parent 37f1c5868e
commit 74171e9dab
1 changed files with 1 additions and 2 deletions
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3
drivers/pci/hotplug/pnv_php.c
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@ -275,14 +275,13 @@ static int pnv_php_add_devtree(struct pnv_php_slot *php_slot)
goto free_fdt1;
}
fdt = kzalloc(fdt_totalsize(fdt1), GFP_KERNEL);
fdt = kmemdup(fdt1, fdt_totalsize(fdt1), GFP_KERNEL);
if (!fdt) {
ret = -ENOMEM;
goto free_fdt1;
}
/* Unflatten device tree blob */
memcpy(fdt, fdt1, fdt_totalsize(fdt1));
dt = of_fdt_unflatten_tree(fdt, php_slot->dn, NULL);
if (!dt) {
ret = -EINVAL;