Coverity: Fix CID1393979

Fix resource leak in dt_set_bin_prop_by_path().

Change-Id: I1c4d7e01b25847a2091ad90d2d70711beae55905
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/27445
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
diff --git a/src/lib/device_tree.c b/src/lib/device_tree.c
index 3d44f39..00b36fd 100644
--- a/src/lib/device_tree.c
+++ b/src/lib/device_tree.c
@@ -944,6 +944,7 @@
 
 	prop_name = strrchr(path_copy, '/');
 	if (!prop_name) {
+		free(path_copy);
 		printk(BIOS_ERR, "Path %s does not include '/'\n", path);
 		return 1;
 	}
@@ -956,10 +957,12 @@
 	if (!dt_node) {
 		printk(BIOS_ERR, "Failed to %s %s in the device tree\n",
 		       create ? "create" : "find", path_copy);
+		free(path_copy);
 		return 1;
 	}
 
 	dt_add_bin_prop(dt_node, prop_name, data, data_size);
+	free(path_copy);
 
 	return 0;
 }