4.20-stable review patch. If anyone has any objections, please let me know.
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[ Upstream commit aea0a897af9e44c258e8ab9296fad417f1bc063a ]
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 yuehaibing@huawei.com Acked-by: Richard Cochran richardcochran@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- 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 5419a89d300e..9b8aa6718ee7 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -249,8 +249,10 @@ 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) { @@ -261,6 +263,7 @@ 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; }