This is a note to let you know that I've just added the patch titled
ptp: Fix pass zero to ERR_PTR() in ptp_clock_register
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ptp-fix-pass-zero-to-err_ptr-in-ptp_clock_register.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From aea0a897af9e44c258e8ab9296fad417f1bc063a Mon Sep 17 00:00:00 2001
From: YueHaibing <yuehaibing@xxxxxxxxxx>
Date: Fri, 23 Nov 2018 09:54:55 +0800
Subject: ptp: Fix pass zero to ERR_PTR() in ptp_clock_register
From: YueHaibing <yuehaibing@xxxxxxxxxx>
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@xxxxxxxxxx>
Acked-by: Richard Cochran <richardcochran@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/ptp/ptp_clock.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/ptp/ptp_clock.c
+++ b/drivers/ptp/ptp_clock.c
@@ -222,8 +222,10 @@ struct ptp_clock *ptp_clock_register(str
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(str
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;
}
Patches currently in stable-queue which might be from yuehaibing@xxxxxxxxxx are
queue-4.9/ptp-fix-pass-zero-to-err_ptr-in-ptp_clock_register.patch
