Re: [PATCH] tm6000: fix vbuf may be used uninitialized

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On Thu, Mar 24, 2011 at 11:31:08PM +0300, Dan Carpenter wrote:
> On Thu, Mar 24, 2011 at 04:07:00PM -0400, Jarod Wilson wrote:
> > Signed-off-by: Jarod Wilson <jarod@xxxxxxxxxx>
> 
> Jarod, there is a lot of information missing from your change log...  :/

Hrm, I'm building the media stack with all warnings fatal, so this was
just a quick fix to silence the compiler warning, didn't really look into
it at all.

> > CC: devel@xxxxxxxxxxxxxxxxxxxx
> > ---
> >  drivers/staging/tm6000/tm6000-video.c |    2 +-
> >  1 files changed, 1 insertions(+), 1 deletions(-)
> > 
> > diff --git a/drivers/staging/tm6000/tm6000-video.c b/drivers/staging/tm6000/tm6000-video.c
> > index c80a316..bfebedd 100644
> > --- a/drivers/staging/tm6000/tm6000-video.c
> > +++ b/drivers/staging/tm6000/tm6000-video.c
> > @@ -228,7 +228,7 @@ static int copy_streams(u8 *data, unsigned long len,
> >  	unsigned long header = 0;
> >  	int rc = 0;
> >  	unsigned int cmd, cpysize, pktsize, size, field, block, line, pos = 0;
> > -	struct tm6000_buffer *vbuf;
> > +	struct tm6000_buffer *vbuf = NULL;
> >  	char *voutp = NULL;
> >  	unsigned int linewidth;
> >  
> 
> This looks like a real bug versus just a GCC warning.  It was introduced
> in 8aff8ba95155df "[media] tm6000: add radio support to the driver".
> I've added Dmitri to the CC list.

Thanks much, will try to pay more attention next time. ;)

-- 
Jarod Wilson
jarod@xxxxxxxxxx

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