[PATCH] riscv: ae350: Check firmware_fdt_addr header

[Rick Chen]

Check firmware_fdt_addr header to see if it is a valid
fdt blob.

Signed-off-by: Rick Chen <rick at andestech.com>
---
 board/AndesTech/ax25-ae350/ax25-ae350.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/board/AndesTech/ax25-ae350/ax25-ae350.c
b/board/AndesTech/ax25-ae350/ax25-ae350.c
index 36f0dd4..f348066 100644
--- a/board/AndesTech/ax25-ae350/ax25-ae350.c
+++ b/board/AndesTech/ax25-ae350/ax25-ae350.c
@@ -60,7 +60,7 @@ void *board_fdt_blob_setup(int *err)
  *err = 0;

  if (IS_ENABLED(CONFIG_OF_SEPARATE) || IS_ENABLED(CONFIG_OF_BOARD)) {
- if (gd->arch.firmware_fdt_addr)
+ if (fdt_magic(gd->arch.firmware_fdt_addr) == FDT_MAGIC)
  return (void *)(ulong)gd->arch.firmware_fdt_addr;
  }

-- 
2.7.4