In most Linux distribution kernels, the SND is set to m, in such a case, when booting the kernel on i.MX8MP EVK board, there is a warning calltrace like below: Call trace: snd_card_init+0x484/0x4cc [snd] snd_card_new+0x70/0xa8 [snd] snd_soc_bind_card+0x310/0xbd0 [snd_soc_core] snd_soc_register_card+0xf0/0x108 [snd_soc_core] devm_snd_soc_register_card+0x4c/0xa4 [snd_soc_core]
That is because the card.owner is not set, a warning calltrace is raised in the snd_card_init() due to it.
Fixes: aa736700f42f ("ASoC: imx-card: Add imx-card machine driver") Signed-off-by: Hui Wang hui.wang@canonical.com --- sound/soc/fsl/imx-card.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c index 98b37dd2b901..a7215bad6484 100644 --- a/sound/soc/fsl/imx-card.c +++ b/sound/soc/fsl/imx-card.c @@ -710,6 +710,7 @@ static int imx_card_probe(struct platform_device *pdev)
data->plat_data = plat_data; data->card.dev = &pdev->dev; + data->card.owner = THIS_MODULE;
dev_set_drvdata(&pdev->dev, &data->card); snd_soc_card_set_drvdata(&data->card, data);