linux-kernel - Re: [PATCH] DMA: OF: Check properties value before running be32_to

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Date:	Thu, 21 Mar 2013 16:08:45 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Viresh Kumar <viresh.kumar@...aro.org>
Cc:	linaro-kernel@...ts.linaro.org, spear-devel@...t.st.com,
	linux-kernel@...r.kernel.org, rob.herring@...xeda.com,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] DMA: OF: Check properties value before running
 be32_to_cpup() on it

On Thu, Mar 21, 2013 at 03:48:50PM +0530, Viresh Kumar wrote:
> On 21 March 2013 15:16, Vinod Koul <vinod.koul@...el.com> wrote:
> > On Fri, Mar 15, 2013 at 02:18:20PM +0530, Viresh Kumar wrote:
> >> In of_dma_controller_register() routine we are calling of_get_property() as an
> >> parameter to be32_to_cpup(). In case the property doesn't exist we will get a
> >> crash.
> >>
> >> This patch changes this code to check if we got a valid property first and then
> >> runs be32_to_cpup() on it.
> >>
> >> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> >> ---
> >>
> >> My mails are broken, i have pushed this patch here:
> > I noticed you used git send-email. Usually it will send patch properly
> > independent of whatever MUA you use.
> 
> Probably not!! Its the famous (Infamous) Microsoft exchange server working in
> background and it breaks mails without treating mails coming from git send-email
> specially :)
I have seen usually receiving patches is a problem, not sending. at least at my
work place till now my sent patches have not been broken but what I receive has
thus forcing me to use non exchange accounts for receiving email but somehow situation
is better for receiving too :)
--
~Vinod
> 
> > So I have the patch and its applied now :)
> 
> I have seen this kind of discrimination on breaking patches based on the size of
> patch. If its very small (like this one), you may get a unbroken patch
> but if the size
> is a bit large then nobody can save you :)

> 
> --
> viresh
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