From mboxrd@z Thu Jan  1 00:00:00 1970
From: Takashi Iwai <tiwai@suse.de>
Subject: Re: [PATCH] [updated] pcm: rate: Add capability to
	pass configuration node to plugins
Date: Tue, 21 Feb 2017 15:43:41 +0100
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To: Alan Young <Alan.Young@IEE.org>
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On Tue, 21 Feb 2017 15:34:44 +0100,
Alan Young wrote:
> 
> +	else if (snd_config_get_type(converter) == SND_CONFIG_TYPE_COMPOUND) {
> +		snd_config_iterator_t i, next;
> +		snd_config_for_each(i, next, converter) {
> +			snd_config_t *n = snd_config_iterator_entry(i);
> +			const char *id;
> +			snd_config_get_id(n, &id);
> +			if (strcmp(id, "name") != 0)
> +				continue;
> +			snd_config_get_string(n, &type);
> +			break;
> +		}
> +		if (type) {
> +			err = rate_open_func(rate, type, converter, 1);
> +		}

The error handling is missing when no name is given.
You should handle the error explicitly instead of the success.

		if (!type) {
			SNDERR("No name is given for rate converter");
			.....
			return -EINVAL;
		}

		err = rate_open_func(....);


Takashi