Re: [patch -mm 10/28] highres: Improve debug output

Thomas Gleixner
2007-06-26T12:16:49Z

On Mon, 2007-06-25 at 17:14 -0700, Andrew Morton wrote:
> On Sat, 23 Jun 2007 13:32:35 -0000
> Thomas Gleixner <tglx@linutronix.de> wrote:
>
> > if (!dev || !(dev->features & CLOCK_EVT_FEAT_ONESHOT) ||
> > - !tick_device_is_functional(dev))
> > + !tick_device_is_functional(dev)) {
> > +
> > + printk(KERN_INFO "Clockevents: "
> > + "could not switch to one-shot mode:");
> > + if (!dev) {
> > + printk(" no tick device\n");
> > + } else {
> > + if (!tick_device_is_functional(dev))
> > + printk(" %s is not functional.\n", dev->name);
> > + else if (!(dev->features & CLOCK_EVT_FEAT_ONESHOT))
> > + printk(" %s does not support one-shot mode.\n",
> > + dev->name);
> > + }
>
> There is a logic path through here where the printk doesn't get its \n
> termination? And it will fail to print the reason for the failure, too.
>
> Maybe that's a can't-happen, in which case the CLOCK_EVT_FEAT_ONESHOT test
> is superfluous?

Right, the "else if (...)" test is bogus. A simple "else" is sufficient.

tglx