| Message ID | 20181109101449.15398-3-mlichvar@redhat.com |
|---|---|
| State | Accepted, archived |
| Delegated to: | David Miller |
| Headers | show |
| Series | More accurate PHC<->system clock synchronization | expand |
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c index b54b8158ff8a..3c681bed5703 100644 --- a/drivers/ptp/ptp_chardev.c +++ b/drivers/ptp/ptp_chardev.c @@ -228,7 +228,9 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; pct++; - ptp->info->gettime64(ptp->info, &ts); + err = ptp->info->gettime64(ptp->info, &ts); + if (err) + goto out; pct->sec = ts.tv_sec; pct->nsec = ts.tv_nsec; pct++; @@ -281,6 +283,7 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg) break; } +out: kfree(sysoff); return err; }
If a gettime64 call fails, return the error and avoid copying data back to user. Cc: Richard Cochran <richardcochran@gmail.com> Cc: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> --- drivers/ptp/ptp_chardev.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)