powerpc: Use of_node_name_eq for node name comparisons

Convert string compares of DT node names to use of_node_name_eq helper
instead. This removes direct access to the node name pointer.

A couple of open coded iterating thru the child node names are converted
to use for_each_child_of_node() instead.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 2 insertions, 8 deletions

diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 2f00e3daafb0..2e8221e20ee8 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -560,15 +560,9 @@ static int __init check_pmac_serial_console(void)
 	}
 	pr_debug("stdout is %pOF\n", prom_stdout);
 
-	name = of_get_property(prom_stdout, "name", NULL);
-	if (!name) {
-		pr_debug(" stdout package has no name !\n");
-		goto not_found;
-	}
-
-	if (strcmp(name, "ch-a") == 0)
+	if (of_node_name_eq(prom_stdout, "ch-a"))
 		offset = 0;
-	else if (strcmp(name, "ch-b") == 0)
+	else if (of_node_name_eq(prom_stdout, "ch-b"))
 		offset = 1;
 	else
 		goto not_found;