Clang static analyzer complains that value stored to 'ret' is never read. Return the error code when spi_sync() failed. Signed-off-by: Su Hui <suhui@nfschina.com> Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org> Link: https://lore.kernel.org/r/20231130051155.1235972-1-suhui@nfschina.com Signed-off-by: Lee Jones <lee@kernel.org>