This function currently returns a node pointer so there is no way to know
the error code. Also it uses data in BSS which seems unnecessary since the
caller might prefer to use a local variable.
Update the function and split its body out into a separate function so we
can use it later.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
924e346a66