Hi Wolfram,
On 2 March 2016 at 23:57, Wolfram Sang <w...@the-dreams.de> wrote:
> From: Wolfram Sang <wsa+rene...@sang-engineering.com>
>
> The clk API may return 0 on clk_get_rate, so we should check the result before
> using it as a divisor.
>
> Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
> ---
> drivers/pwm/pwm-lpc18xx-sct.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/drivers/pwm/pwm-lpc18xx-sct.c b/drivers/pwm/pwm-lpc18xx-sct.c
> index 9163085101bc94..9861fed4e67d04 100644
> --- a/drivers/pwm/pwm-lpc18xx-sct.c
> +++ b/drivers/pwm/pwm-lpc18xx-sct.c
> @@ -360,6 +360,11 @@ static int lpc18xx_pwm_probe(struct platform_device
> *pdev)
> }
>
> lpc18xx_pwm->clk_rate = clk_get_rate(lpc18xx_pwm->pwm_clk);
> + if (!lpc18xx_pwm->clk_rate) {
> + dev_err(&pdev->dev, "pwm clock has no frequency\n");
> + ret = -EINVAL;
> + goto disable_pwmclk;
> + }
Acked-by: Joachim Eastwood <manab...@gmail.com>
Thanks for fixing this.
regards,
Joachim Eastwood
