diff options
| author | YueHaibing <yuehaibing@huawei.com> | 2018-11-23 09:54:55 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-05-20 08:11:40 +0200 |
| commit | 6091936487a95791e24019ad949d11c661700205 (patch) | |
| tree | 72ac2c0e45ae5c8220b5e8e4b60c8ba0243a5c8c /drivers/ptp | |
| parent | d79d7d5c878809964da537336dad5ff55fa1605e (diff) | |
ptp: Fix pass zero to ERR_PTR() in ptp_clock_register
commit aea0a897af9e44c258e8ab9296fad417f1bc063a upstream.
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: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/ptp')
| -rw-r--r-- | drivers/ptp/ptp_clock.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ptp/ptp_clock.c b/drivers/ptp/ptp_clock.c index 5f5d54f5153f..a29772667f79 100644 --- a/drivers/ptp/ptp_clock.c +++ b/drivers/ptp/ptp_clock.c @@ -222,8 +222,10 @@ 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) { @@ -234,6 +236,7 @@ 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; } |