pm80xx_get_gsm_dump() was returning "1" in error case
instead of negative error value.
Signed-off-by: NViswas G <Viswas.G@pmcs.com>
Reviewed-by: NJack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: NTomas Henzl <thenzl@redhat.com>
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>