powerpc: Use of_property_present()

Use of_property_present() to test for property presence rather than
of_get_property(). This is part of a larger effort to remove callers
of of_get_property() and similar functions. of_get_property() leaks
the DT property data pointer which is a problem for dynamically
allocated nodes which may be freed.
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240731191312.1710417-9-robh@kernel.org

arch/powerpc/platforms/powernv/eeh-powernv.c

@@ -860,7 +860,7 @@ static int pnv_eeh_bridge_reset(struct pci_dev *pdev, int option)
 	int64_t rc;
 
 	/* Hot reset to the bus if firmware cannot handle */
-	if (!dn || !of_get_property(dn, "ibm,reset-by-firmware", NULL))
+	if (!dn || !of_property_present(dn, "ibm,reset-by-firmware"))
 		return __pnv_eeh_bridge_reset(pdev, option);
 
 	pr_debug("%s: FW reset PCI bus %04x:%02x with option %d\n",

arch/powerpc/platforms/powernv/opal-lpc.c

@@ -393,7 +393,7 @@ void __init opal_lpc_init(void)
 	for_each_compatible_node(np, NULL, "ibm,power8-lpc") {
 		if (!of_device_is_available(np))
 			continue;
-		if (!of_get_property(np, "primary", NULL))
+		if (!of_property_present(np, "primary"))
 			continue;
 		opal_lpc_chip_id = of_get_ibm_chip_id(np);
 		of_node_put(np);