ASoC: soc-pcm.c: indicate error if stream has no playback no capture

soc_get_playback_capture() (A) returns number of substreams for
playback/capture (B).
ASoC will probe the Sound Card and mapps CPU<->Codec pair.

(A)	static int soc_get_playback_capture(...,
(B)				    int *playback, int *capture)
	{
		...
		if (rtd->dai_link->playback_only) {
			*playback = 1;
			*capture = 0;
		}

		if (rtd->dai_link->capture_only) {
			*playback = 0;
			*capture = 1;
		}
(C)
		return 0;
	}

But it might be no playback no capture if it returns playback=0, capture=0.
It is very difficult to notice about it. This patch indicates error at (C)
then.

Signed-off-by: Kuninori Morimoto <[email protected]>
Reviewed-by: Amadeusz Sławiński <[email protected]>
Reviewed-by: Pierre-Louis Bossart <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>

0 files changed, 0 insertions, 0 deletions