We currently have gsmld_output() ignore the return value from device
write. This means we will lose packets if device write returns 0 or
an error.
Signed-off-by: NTony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210930060624.46523-1-tony@atomide.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>