Re: [PATCH 3/3] kernel-shark: fix unitialized handle compilewarnings

From: Steven Rostedt
Date: Wed Feb 03 2010 - 11:17:38 EST


On Wed, 2010-02-03 at 17:05 +0100, John Kacur wrote:
> On Mon, Feb 1, 2010 at 5:50 PM, Darren Hart <dvhltc@xxxxxxxxxx> wrote:
> > Signed-off-by: Darren Hart <dvhltc@xxxxxxxxxx>
> > ---
> > kernel-shark.c | 6 +++---
> > 1 files changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/kernel-shark.c b/kernel-shark.c
> > index 9dedf48..222381c 100644
> > --- a/kernel-shark.c
> > +++ b/kernel-shark.c
> > @@ -596,10 +596,10 @@ void kernel_shark(int argc, char **argv)
> > if (ret >= 0)
> > input_file = default_input_file;
> > }
> > - if (handle)
> > - handle = tracecmd_open(input_file);
> > + handle = tracecmd_open(input_file);
> >
> > - info->handle = handle;
> > + if (handle)
> > + info->handle = handle;
> >
> > /* --- Main window --- */
> >
> > --
>
> This looks correct, but I'm wondering if it is safe to continue if the
> call to tracecmd_open fails?

Actually this patch is wrong. The real code should be:

- if (handle)
+ if (input_file)

-- Steve


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