Re: [PATCH] usb: host: remove unnecessary null check

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On Tue, 2 May 2017, Gustavo A. R. Silva wrote:

> Remove unnecessary null check. udev->tt cannot ever be NULL when this
> section of code runs.
> 
> Addresses-Coverity-ID: 100828
> Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
> ---
>  drivers/usb/host/ehci-sched.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
> index 980a6b3..6bc6304 100644
> --- a/drivers/usb/host/ehci-sched.c
> +++ b/drivers/usb/host/ehci-sched.c
> @@ -1105,7 +1105,7 @@ iso_stream_init(
>  		addr |= epnum << 8;
>  		addr |= dev->devnum;
>  		stream->ps.usecs = HS_USECS_ISO(maxp);
> -		think_time = dev->tt ? dev->tt->think_time : 0;
> +		think_time = dev->tt->think_time;
>  		stream->ps.tt_usecs = NS_TO_US(think_time + usb_calc_bus_time(
>  				dev->speed, is_input, 1, maxp));
>  		hs_transfers = max(1u, (maxp + 187) / 188);

Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>

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