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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: "H. Nikolaus Schaller" <hns@goldelico.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>,
	Peter Ujfalusi <peter.ujfalusi@ti.com>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	kernel@pyra-handheld.com, letux-kernel@openphoenux.org
Subject: Re: [PATCH 4/5] input: twl6040-vibra: ignore return value of schedule_work
Date: Mon, 18 Apr 2016 14:47:43 -0700	[thread overview]
Message-ID: <20160418214743.GE1006@dtor-ws> (raw)
In-Reply-To: <91f044c37473f3563790743bf6e66ac7f3d2661c.1461009340.git.hns@goldelico.com>

On Mon, Apr 18, 2016 at 09:55:40PM +0200, H. Nikolaus Schaller wrote:
> returning ret is wrong. And checking for an error as well. User space
> may call multiple times until the work is really scheduled.
> 
> twl4030-vibra.c also ignores the return value.
> 
> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>

Applied, thank you.

> ---
>  drivers/input/misc/twl6040-vibra.c | 6 +-----
>  1 file changed, 1 insertion(+), 5 deletions(-)
> 
> diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
> index 3805129..69c5940 100644
> --- a/drivers/input/misc/twl6040-vibra.c
> +++ b/drivers/input/misc/twl6040-vibra.c
> @@ -212,11 +212,7 @@ static int vibra_play(struct input_dev *input, void *data,
>  	info->strong_speed = effect->u.rumble.strong_magnitude;
>  	info->direction = effect->direction < EFFECT_DIR_180_DEG ? 1 : -1;
>  
> -	ret = schedule_work(&info->play_work);
> -	if (!ret) {
> -		dev_info(&input->dev, "work is already on queue\n");
> -		return ret;
> -	}
> +	schedule_work(&info->play_work);
>  
>  	return 0;
>  }
> -- 
> 2.7.3
> 

-- 
Dmitry

  reply	other threads:[~2016-04-18 21:47 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-18 19:55 [PATCH 0/5] fixes for twl6040-vibra H. Nikolaus Schaller
2016-04-18 19:55 ` [PATCH 1/5] input: twl6040-vibra: fix DT node memory management H. Nikolaus Schaller
2016-04-18 21:22   ` Dmitry Torokhov
2016-04-19  7:43     ` H. Nikolaus Schaller
2016-04-19 17:06       ` Dmitry Torokhov
2016-04-20  9:03         ` H. Nikolaus Schaller
2016-05-08  6:49           ` [Kernel] " H. Nikolaus Schaller
2016-05-10  0:02             ` Dmitry Torokhov
2016-04-18 19:55 ` [PATCH 2/5] input: twl6040-vibra: add handler to unregister input if module is removed H. Nikolaus Schaller
2016-04-18 21:12   ` Dmitry Torokhov
2016-04-19  7:33     ` H. Nikolaus Schaller
2016-04-19  7:57       ` Dmitry Torokhov
2016-04-19  8:05         ` H. Nikolaus Schaller
2016-04-19 16:53           ` Dmitry Torokhov
2016-04-20  9:12             ` H. Nikolaus Schaller
2016-04-18 19:55 ` [PATCH 3/5] input: twl6040-vibra: fix NULL pointer dereference by removing workqueue H. Nikolaus Schaller
2016-04-18 21:47   ` Dmitry Torokhov
2016-04-18 19:55 ` [PATCH 4/5] input: twl6040-vibra: ignore return value of schedule_work H. Nikolaus Schaller
2016-04-18 21:47   ` Dmitry Torokhov [this message]
2016-04-18 19:55 ` [PATCH 5/5] input: twl6040-vibra: remove mutex H. Nikolaus Schaller
2016-04-18 21:20   ` Dmitry Torokhov
2016-04-19  7:49     ` H. Nikolaus Schaller
2016-04-19  8:01       ` Dmitry Torokhov
2016-04-19  8:08         ` H. Nikolaus Schaller
2016-04-20  9:22           ` [Letux-kernel] " H. Nikolaus Schaller
2016-04-20 17:49             ` Dmitry Torokhov
2016-04-20 18:10               ` H. Nikolaus Schaller
2016-04-20 18:15                 ` Dmitry Torokhov
2016-04-20 19:00                   ` H. Nikolaus Schaller

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