fdt_first_subnode() returns -FDT_ERR_NOTFOUND if no subnode found. 0 is supposed to be a valid offset returns from fdt_first_subnode(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>master
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