Re: [PATCH] usb: chipidea: host: Only disable the vbus regulator if it is not NULL

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On Fri, Nov 08, 2013 at 01:09:47AM -0200, Fabio Estevam wrote:
> From: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
> 
> Commit 40ed51a4b (usb: chipidea: host: add vbus regulator
> control) introduced a smatch complaint because regulator_disable() is called
> without checking whether ci->platdata->reg_vbus is not NULL.
> 
> Fix this by adding the check.
> 
> Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxxxxxxxx>
> ---
>  drivers/usb/chipidea/host.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index 59e6020..526cd77 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -88,7 +88,8 @@ static int host_start(struct ci_hdrc *ci)
>  	return ret;
>  
>  disable_reg:
> -	regulator_disable(ci->platdata->reg_vbus);
> +	if (ci->platdata->reg_vbus)
> +		regulator_disable(ci->platdata->reg_vbus);
>  
>  put_hcd:
>  	usb_put_hcd(hcd);
> -- 
> 1.8.1.2
> 
> 

Applied, Thanks.

-- 

Best Regards,
Peter Chen

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