[alsa-devel] [PATCH] ASoC: kirkwood-i2s: fix a compilation warning

Mark Brown broonie at kernel.org
Mon Jul 15 17:31:01 CEST 2013

On Mon, Jul 15, 2013 at 10:36:44AM +0200, Jean-Francois Moine wrote:
> In the function kirkwood_set_rate, when the rate cannot be satisfied
> by the internal nor by an external clock, the clock source in undefined:

>  warning: ‘clks_ctrl’ may be used uninitialized in this function

> As the ALSA subsystem should never gives such a rate, this patch removes
> the check of the external clock pointer.

> -	} else if (!IS_ERR(priv->extclk)) {
> +	} else {

I'd really like to see an analysis explaining why this can never happen,
the driver explicitly supports running without extclk being provided.
Simply asserting that we should never get such a rate isn't really
enough detail...
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