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The caller expects from the others (pfc_config and multi_config) to return standard error values. So do the same for simple_config too. We invert the if condition to handle the error case. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20210302062214.29627-13-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>