linux-kernel - Re: [PATCH v2 11/12] ASoC: qdsp6: q6routing: add proper error check

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Message-ID: <20180626093608.GG25217@centauri.ideon.se>
Date:   Tue, 26 Jun 2018 11:36:08 +0200
From:   Niklas Cassel <niklas.cassel@...aro.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     broonie@...nel.org, robh+dt@...nel.org,
        alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, lgirdwood@...il.com,
        bgoswami@...eaurora.org, tiwai@...e.com, perex@...ex.cz,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 11/12] ASoC: qdsp6: q6routing: add proper error check

Acked-by: Niklas Cassel <niklas.cassel@...aro.org>

On Tue, Jun 26, 2018 at 10:20:15AM +0100, Srinivas Kandagatla wrote:
> q6adm_open can return error pointer or a null in error cases.
> Fix the return handling.
> 
> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> ---
>  sound/soc/qcom/qdsp6/q6routing.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/sound/soc/qcom/qdsp6/q6routing.c b/sound/soc/qcom/qdsp6/q6routing.c
> index ab696bf8d1d3..c80fdbc2442e 100644
> --- a/sound/soc/qcom/qdsp6/q6routing.c
> +++ b/sound/soc/qcom/qdsp6/q6routing.c
> @@ -310,7 +310,7 @@ int q6routing_stream_open(int fedai_id, int perf_mode,
>  			      session->channels, topology, perf_mode,
>  			      session->bits_per_sample, 0, 0);
>  
> -	if (!copp) {
> +	if (IS_ERR_OR_NULL(copp)) {
>  		mutex_unlock(&routing_data->lock);
>  		return -EINVAL;
>  	}
> -- 
> 2.16.2
>