[PATCH v5 3/5] cmd: kaslrseed: Use common API to fixup FDT

[seanedmond@linux.microsoft.com]

From: Sean Edmond <seanedmond@microsoft.com>

Use the newly introduced common API fdt_fixup_kaslr_seed() in the
kaslrseed command.

Signed-off-by: Sean Edmond <seanedmond@microsoft.com>
---
 cmd/kaslrseed.c | 22 ++++++++--------------
 1 file changed, 8 insertions(+), 14 deletions(-)

diff --git a/cmd/kaslrseed.c b/cmd/kaslrseed.c
index 9acb8e16386..23ed7c066aa 100644
--- a/cmd/kaslrseed.c
+++ b/cmd/kaslrseed.c
@@ -19,7 +19,7 @@ static int do_kaslr_seed(struct cmd_tbl *cmdtp, int flag, int argc, char *const
 	size_t n = 0x8;
 	struct udevice *dev;
 	u64 *buf;
-	int nodeoffset;
+	ofnode root;
 	int ret = CMD_RET_SUCCESS;
 
 	if (uclass_get_device(UCLASS_RNG, 0, &dev) || !dev) {
@@ -45,21 +45,15 @@ static int do_kaslr_seed(struct cmd_tbl *cmdtp, int flag, int argc, char *const
 		return CMD_RET_FAILURE;
 	}
 
-	ret = fdt_check_header(working_fdt);
-	if (ret < 0) {
-		printf("fdt_chosen: %s\n", fdt_strerror(ret));
-		return CMD_RET_FAILURE;
-	}
-
-	nodeoffset = fdt_find_or_add_subnode(working_fdt, 0, "chosen");
-	if (nodeoffset < 0) {
-		printf("Reading chosen node failed\n");
-		return CMD_RET_FAILURE;
+	ret = root_ofnode_from_fdt(working_fdt, &root);
+	if (ret) {
+		printf("ERROR: Unable to get root ofnode\n");
+		goto CMD_RET_FAILURE;
 	}
 
-	ret = fdt_setprop(working_fdt, nodeoffset, "kaslr-seed", buf, sizeof(buf));
-	if (ret < 0) {
-		printf("Unable to set kaslr-seed on chosen node: %s\n", fdt_strerror(ret));
+	ret = fdt_fixup_kaslr_seed(root, (u8 *)buf, sizeof(buf));
+	if (ret) {
+		printf("ERROR: failed to add kaslr-seed to fdt\n");
 		return CMD_RET_FAILURE;
 	}
 
-- 
2.42.0