On 1/26/25 21:10, Guenter Roeck wrote:
> On 1/26/25 00:38, Liu Chao wrote:
> > Every time the user echoes 0 > /dev/watchdog0, meaningless critical
> > log is printed.
> >
>
> It is not meaningless, and it will still be displayed after this
> change, making the change pointless.
The change is not pointless. For example, the softdog driver does not invoke
watchdog_stop or print logs in the watchdog_release.
Liu Chao
>
> Guenter
>
> > Signed-off-by: Liu Chao <liuchao173@xxxxxxxxxx>
> > ---
> > drivers/watchdog/watchdog_dev.c | 9 +++++----
> > 1 file changed, 5 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/watchdog/watchdog_dev.c
> > b/drivers/watchdog/watchdog_dev.c index e2bd266b1b5b..0a9d5e6f3a88
> > 100644
> > --- a/drivers/watchdog/watchdog_dev.c
> > +++ b/drivers/watchdog/watchdog_dev.c
> > @@ -960,14 +960,15 @@ static int watchdog_release(struct inode
> > *inode,
> struct file *file)
> > if (!watchdog_active(wdd))
> > err = 0;
> > else if (test_and_clear_bit(_WDOG_ALLOW_RELEASE,
> &wd_data->status) ||
> > - !(wdd->info->options & WDIOF_MAGICCLOSE))
> > + !(wdd->info->options & WDIOF_MAGICCLOSE)) {
> > err = watchdog_stop(wdd);
> > + if (err < 0)
> > + pr_crit("watchdog%d: watchdog did not stop!\n", wdd->id);
> > + }
> >
> > /* If the watchdog was not stopped, send a keepalive ping */
> > - if (err < 0) {
> > - pr_crit("watchdog%d: watchdog did not stop!\n", wdd->id);
> > + if (err < 0)
> > watchdog_ping(wdd);
> > - }
> >
> > watchdog_update_worker(wdd);
> >
