[alsa-devel] [PATCH] ASoC: fsl-sai: Add device tree nodes and its availiable check

SAIs that are not connected on the board should have a status = "disabled" property in their device tree nodes.

Signed-off-by: Xiubo Li Li.Xiubo@freescale.com --- sound/soc/fsl/fsl_sai.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c index cdd3fa8..6b2ab91 100644 --- a/sound/soc/fsl/fsl_sai.c +++ b/sound/soc/fsl/fsl_sai.c @@ -404,6 +404,9 @@ static int fsl_sai_probe(struct platform_device *pdev) struct resource *res; int ret;

+ if (!np || !of_device_is_available(np)) + return -ENODEV; + sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL); if (!sai) return -ENOMEM;