ASoC: rsnd: set dmaen->chan = NULL when error case
rsnd_dmaen_quit() is assuming dmaen->chan is NULL if it failed to get DMAEngine channel. but, current dmaen->chan might have error value when error case (this driver is checking it by IS_ERR_OR_NULL()) This patch makes sure dmaen->chan is NULL when error case. Otherwise, it will contact to unknown address in rsnd_dmaen_quit() Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -156,6 +156,7 @@ static int rsnd_dmaen_init(struct rsnd_priv *priv, struct rsnd_dma *dma, int id,
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(void *)id);
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}
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if (IS_ERR_OR_NULL(dmaen->chan)) {
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dmaen->chan = NULL;
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dev_err(dev, "can't get dma channel\n");
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goto rsnd_dma_channel_err;
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}
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