linux-kernel - Re: [PATCH] pwm: atmel-hlcdc: Prevent div by zero

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Message-ID: <20141219085041.GB7352@ulmo>
Date:	Fri, 19 Dec 2014 09:50:43 +0100
From:	Thierry Reding <thierry.reding@...il.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:	linux-pwm@...r.kernel.org, Jim Davis <jim.epost@...il.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pwm: atmel-hlcdc: Prevent div by zero

On Thu, Dec 18, 2014 at 09:05:30PM +0100, Boris Brezillon wrote:
> The slow and system clock should never return a rate of zero, but this
> might happen if the clocks property defined in the DT is referencing the
> wrong clocks.
> Prevent any division by zero from happening by testing the clk_freq value
> before calling do_div.
> 
> Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
> ---
>  drivers/pwm/pwm-atmel-hlcdc.c | 6 ++++++
>  1 file changed, 6 insertions(+)

Applied, thanks.

Thierry

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