linux-kernel - Re: [PATCH] Input: uinput - Fix returning EPOLLOUT from uinput

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Message-ID: <20191205012734.GN50317@dtor-ws>
Date:   Wed, 4 Dec 2019 17:27:34 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Marcel Holtmann <marcel@...tmann.org>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Input: uinput - Fix returning EPOLLOUT from uinput_poll

On Wed, Dec 04, 2019 at 03:50:14AM +0100, Marcel Holtmann wrote:
> Always return EPOLLOUT from uinput_poll to allow polling /dev/uinput
> for writable state.
> 
> Signed-off-by: Marcel Holtmann <marcel@...tmann.org>
> Cc: stable@...r.kernel.org

Applied, thank you.

> ---
>  drivers/input/misc/uinput.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
> index 84051f20b18a..fd253781be71 100644
> --- a/drivers/input/misc/uinput.c
> +++ b/drivers/input/misc/uinput.c
> @@ -695,7 +695,7 @@ static __poll_t uinput_poll(struct file *file, poll_table *wait)
>  	if (udev->head != udev->tail)
>  		return EPOLLIN | EPOLLRDNORM;
>  
> -	return 0;
> +	return EPOLLOUT | EPOLLWRNORM;
>  }
>  
>  static int uinput_release(struct inode *inode, struct file *file)
> -- 
> 2.23.0
> 

-- 
Dmitry