[PATCH 1/3] tty: hvcs: Drop unnecessary if block

Jiri Slaby jirislaby at kernel.org
Fri Jan 15 19:19:55 AEDT 2021


On 14. 01. 21, 18:57, Uwe Kleine-König wrote:
> If hvcs_probe() succeeded dev_set_drvdata() is called with a non-NULL
> value, and if hvcs_probe() failed hvcs_remove() isn't called.
> 
> So there is no way dev_get_drvdata() can return NULL in hvcs_remove() and
> the check can just go away.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>

Reviewed-by: Jiri Slaby <jirislaby at kernel.org>

> ---
>   drivers/tty/hvc/hvcs.c | 3 ---
>   1 file changed, 3 deletions(-)
> 
> diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
> index 509d1042825a..3e0461285c34 100644
> --- a/drivers/tty/hvc/hvcs.c
> +++ b/drivers/tty/hvc/hvcs.c
> @@ -825,9 +825,6 @@ static int hvcs_remove(struct vio_dev *dev)
>   	unsigned long flags;
>   	struct tty_struct *tty;
>   
> -	if (!hvcsd)
> -		return -ENODEV;
> -
>   	/* By this time the vty-server won't be getting any more interrupts */
>   
>   	spin_lock_irqsave(&hvcsd->lock, flags);
> 


-- 
js


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