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The fdt_getprop() function sets the length to -1 if the property is not found. We should then not use it later in stm32_clk_parse_fdt_by_name() in that case. Directly set *nb to 0U and return 0 if the property is not found. Signed-off-by: Yann Gautier <yann.gautier@foss.st.com> Change-Id: I19c5c953f392cdc768e0b1f3f240fc99a73a049c