From aea0a897af9e44c258e8ab9296fad417f1bc063a Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Fri, 23 Nov 2018 09:54:55 +0800 Subject: [PATCH] ptp: Fix pass zero to ERR_PTR() in ptp_clock_register Fix smatch warning: drivers/ptp/ptp_clock.c:298 ptp_clock_register() warn: passing zero to 'ERR_PTR' 'err' should be set while device_create_with_groups and pps_register_source fails Fixes: 85a66e550195 ("ptp: create "pins" together with the rest of attributes") Signed-off-by: YueHaibing Acked-by: Richard Cochran Signed-off-by: David S. Miller --- drivers/ptp/ptp_clock.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index 40fda23e4b05..8a81eecc0ecd 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -252,8 +252,10 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, ptp->dev = device_create_with_groups(ptp_class, parent, ptp->devid, ptp, ptp->pin_attr_groups, "ptp%d", ptp->index); - if (IS_ERR(ptp->dev)) + if (IS_ERR(ptp->dev)) { + err = PTR_ERR(ptp->dev); goto no_device; + } /* Register a new PPS source. */ if (info->pps) { @@ -264,6 +266,7 @@ struct ptp_clock *ptp_clock_register(struct ptp_clock_info *info, pps.owner = info->owner; ptp->pps_source = pps_register_source(&pps, PTP_PPS_DEFAULTS); if (!ptp->pps_source) { + err = -EINVAL; pr_err("failed to register pps source\n"); goto no_pps; }