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Re: [PATCH] checkpatch: Fix use of uninitialized value
From: |
Isaku Yamahata |
Subject: |
Re: [PATCH] checkpatch: Fix use of uninitialized value |
Date: |
Fri, 9 Apr 2021 10:55:12 -0700 |
On Fri, Apr 09, 2021 at 07:40:11AM +0200,
Greg Kurz <groug@kaod.org> wrote:
> On Thu, 8 Apr 2021 10:49:13 -0700
> Isaku Yamahata <isaku.yamahata@gmail.com> wrote:
>
> >
> > How about initializing them explicitly as follows?
> > ($realfile ne '') prevents the case realfile eq '' && acpi_testexpted eq ''.
> > Anyway your patch also should fix it. So
> > Reviewed-by: Isaku Yamahata <isaku.yamahata@intel.com>
> >
> >
> > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
> > index 8f7053ec9b..2eb894a628 100755
> > --- a/scripts/checkpatch.pl
> > +++ b/scripts/checkpatch.pl
> > @@ -1325,8 +1325,8 @@ sub process {
> > my %suppress_whiletrailers;
> > my %suppress_export;
> >
> > - my $acpi_testexpected;
> > - my $acpi_nontestexpected;
> > + my $acpi_testexpected = '';
> > + my $acpi_nontestexpected = '';
> >
>
> Hmm... I haven't tried but I believe this will break when these are
> passed to checkfilename() :
>
> sub checkfilename {
> my ($name, $acpi_testexpected, $acpi_nontestexpected) = @_;
> [...]
> if (defined $$acpi_testexpected and defined $$acpi_nontestexpected) {
> ERROR("Do not add expected files together with tests, " .
>
>
> > # Pre-scan the patch sanitizing the lines.
Oops. You're right. I scratch it.
--
Isaku Yamahata <isaku.yamahata@gmail.com>