linux-kernel - Re: [PATCH 1/2] staging: bcm2835-audio: Check if workqueue allocation failed

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Date:   Fri, 13 Jul 2018 09:48:16 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Tuomas Tynkkynen <tuomas@...era.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Stefan Wahren <stefan.wahren@...e.com>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Eric Anholt <eric@...olt.net>,
        linux-rpi-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] staging: bcm2835-audio: Check if workqueue
 allocation failed

On Fri, Jul 13, 2018 at 12:54:16AM +0300, Tuomas Tynkkynen wrote:
> @@ -424,7 +411,9 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream)
>  	int status;
>  	int ret;
>  
> -	my_workqueue_init(alsa_stream);
> +	alsa_stream->my_wq = alloc_workqueue("my_queue", WQ_HIGHPRI, 1);
> +	if (!alsa_stream->my_wq)
> +		return -ENOMEM;
>  
>  	ret = bcm2835_audio_open_connection(alsa_stream);
>  	if (ret) {

This patch is good but if bcm2835_audio_open_connection() fails then
we need to release alsa_stream->my_wq.

regards,
dan carpenter