The pps_register_source() function doesn't return NULL, it returns error pointers. Fixes: d94ba80ebbea ("ptp: Added a brand new class driver for ptp clocks.") Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> --- drivers/ptp/ptp_clock.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index 8a81eecc0ecd..48f3594a7458 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -265,8 +265,8 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, pps.mode = PTP_PPS_MODE; pps.owner = info->owner; ptp->pps_source = pps_register_source(&pps, PTP_PPS_DEFAULTS); - if (!ptp->pps_source) { - err = -EINVAL; + if (IS_ERR(ptp->pps_source)) { + err = PTR_ERR(ptp->pps_source); pr_err("failed to register pps source\n"); goto no_pps; } -- 2.11.0