linux-kernel - Re: [PATCH] staging: vboxvideo: vbox_main: Remove unnecessary local variable

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Message-ID: <20190111094238.GA28232@kroah.com>
Date:   Fri, 11 Jan 2019 10:42:38 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Sidong Yang <realwakka@...il.com>
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: vboxvideo: vbox_main: Remove unnecessary local
 variable

On Thu, Jan 10, 2019 at 06:13:47AM +0000, Sidong Yang wrote:
> Removed unnecessary local variable in have_hgsmi_mode_hints.
> The result of hgsmi_query_conf should be directly compared without
> assigning to local variable.
> 
> Signed-off-by: Sidong Yang <realwakka@...il.com>
> ---
>  drivers/staging/vboxvideo/vbox_main.c | 15 ++++++---------
>  1 file changed, 6 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/staging/vboxvideo/vbox_main.c b/drivers/staging/vboxvideo/vbox_main.c
> index e1fb70a42d32..62a69fde7435 100644
> --- a/drivers/staging/vboxvideo/vbox_main.c
> +++ b/drivers/staging/vboxvideo/vbox_main.c
> @@ -170,18 +170,15 @@ static void vbox_accel_fini(struct vbox_private *vbox)
>  static bool have_hgsmi_mode_hints(struct vbox_private *vbox)
>  {
>  	u32 have_hints, have_cursor;
> -	int ret;
>  
> -	ret = hgsmi_query_conf(vbox->guest_pool,
> -			       VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
> -			       &have_hints);
> -	if (ret)
> +	if (hgsmi_query_conf(vbox->guest_pool,
> +			     VBOX_VBVA_CONF32_MODE_HINT_REPORTING,
> +			     &have_hints))
>  		return false;

As Dan says, the original is best here.  I'm dropping this from my patch
queue.

thanks,

greg k-h