linux-kernel - Re: [PATCH v3] dw_dmac: don't exceed AHB master number in dwc_get_data

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Date:	Wed, 16 Jan 2013 17:02:35 +0200
From:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	Vinod Koul <vinod.koul@...el.com>, linux-kernel@...r.kernel.org,
	spear-devel <spear-devel@...t.st.com>
Subject: Re: [PATCH v3] dw_dmac: don't exceed AHB master number in
 dwc_get_data_width

On Wed, 2013-01-16 at 19:37 +0530, Viresh Kumar wrote: 
> On Wed, Jan 16, 2013 at 7:18 PM, Andy Shevchenko
> <andriy.shevchenko@...ux.intel.com> wrote:
> > +static inline unsigned int dwc_get_master(struct dma_chan *chan, int master)
> > +{
> > +       struct dw_dma *dw = to_dw_dma(chan->device);
> > +       struct dw_dma_slave *dws = chan->private;
> > +       unsigned int m = 0;
> 
> :(

There a protection of wrong master parameter.

In the code I did
if ()
m = ...
else if ()
m = ...

Otherwise it would be 0.


-- 
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Intel Finland Oy
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