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Subject: Re: [RFC PATCH 33/40] soundwire: intel: Add basic power management
 support
To:     Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc:     alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
        tiwai@suse.de, broonie@kernel.org, vkoul@kernel.org,
        gregkh@linuxfoundation.org, jank@cadence.com,
        srinivas.kandagatla@linaro.org, slawomir.blauciak@intel.com,
        Sanyog Kale <sanyog.r.kale@intel.com>
References: <20190725234032.21152-1-pierre-louis.bossart@linux.intel.com>
 <20190725234032.21152-34-pierre-louis.bossart@linux.intel.com>
From:   Cezary Rojewski <cezary.rojewski@intel.com>
Message-ID: <0e439b41-503d-7ffb-827f-422d63e439eb@intel.com>
Date:   Fri, 26 Jul 2019 12:50:38 +0200
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On 2019-07-26 01:40, Pierre-Louis Bossart wrote:
> +static int intel_resume(struct device *dev)
> +{
> +	struct sdw_intel *sdw;
> +	int ret;
> +
> +	sdw = dev_get_drvdata(dev);
> +
> +	ret = intel_init(sdw);
> +	if (ret) {
> +		dev_err(dev, "%s failed: %d", __func__, ret);
> +		return ret;
> +	}
> +
> +	sdw_cdns_enable_interrupt(&sdw->cdns);
> +
> +	return ret;
> +}
> +
> +#endif

Suggestion: the local declaration + initialization via dev_get_drvdata() 
are usually combined.

Given the upstream declaration of _enable_interrupt, it does return 
error code/ success. Given current flow, if function gets to 
_enable_interrupt call, ret is already set to 0. Returning 
sdw_cds_enable_interrupt() directly would both simplify the definition 
and prevent status loss.