Re: bug in pwc_set_shutter_speed v2.6.30.5 and fix

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I'm pretty sure this is still broken as of 2.6.32.2
Jef Treece

On Tue, 2009-08-25 at 12:07 +0200, Laurent Pinchart wrote:
> On Sunday 23 August 2009 23:04:00 Jef Treece wrote:
> > I found in recent kernel versions, I think somewhere between 2.6.29.3
> > and 2.6.30.3, pwc_set_shutter_speed regressed.
> >
> > I was able to fix it with this one-line change
> > (drivers/media/video/pwc/pwc-ctrl.c line 755 in 2.6.30.5 source):
> >
> > 	ret = send_control_msg(pdev,
> > 		SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, sizeof(buf));
> >
> > change to
> >
> > 	ret = send_control_msg(pdev,
> > 		SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, 1);
> >
> > I hope you find this information useful.
> 
> This indeed looks like a regression to me.
> 
> Martin, as you've introduced the problem, could you look into it and send a 
> patch ? There might be other occurrences of wrong integer -> sizeof 
> conversions, so please review them carefully.
> 


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