Re: drivers: Probable misuses of ||

From: Joe Perches
Date: Fri May 04 2012 - 18:09:37 EST


On Fri, 2012-05-04 at 23:02 +0100, Mark Brown wrote:
> On Fri, May 04, 2012 at 02:54:37PM -0700, Joe Perches wrote:
> > On Wed, 2012-04-04 at 16:00 -0700, Joe Perches wrote:
>
> > > drivers/media/dvb/dvb-usb/it913x.c: if (ret == 0 || ret != -EBUSY || ret != -ETIMEDOUT)
> > > drivers/media/dvb/dvb-usb/it913x.c: if (ret == 0 || ret != -EBUSY || ret != -ETIMEDOUT)
> > > drivers/media/rc/fintek-cir.c: if ((chip != 0x0408) || (chip != 0x0804))
>
> > It's been a month.
>
> > Do you maintainers not care
> > about these obvious defects?
>
> It'd probably help if you were to supply more analysis as to what the
> issues you think you're seeing are - in the cases quoted above
> (especially the last one) there's no obvious bug without further
> analysis.

Likely the || should be &&.

if (val != foo || test != bar)

is always true when foo != bar


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