[PATCH v4 3/5] cmd: kaslrseed: Use common API to fixup FDT

[seanedmond]

From: Sean Edmond <seanedm...@microsoft.com>

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

Signed-off-by: Sean Edmond <seanedm...@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..6f423702e7c 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, buf, sizeof(buf));
+       if (ret) {
+               printf("ERROR: failed to add kaslr-seed to fdt\n");
                return CMD_RET_FAILURE;
        }
 
-- 
2.42.0