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authorLee Jones <lee.jones@linaro.org>2013-12-19 16:55:00 +0100
committerMark Brown <broonie@linaro.org>2014-01-07 16:37:19 +0100
commita61f9e314ad8ab9434ddd989b857ed93fdc725e2 (patch)
treec1f0a8337859d772a55d9319aaf94e1eba182ae5 /sound/soc/ux500
parentARM: ux500: Don't use enums for MSP IDs - for easy DT conversion (diff)
downloadlinux-a61f9e314ad8ab9434ddd989b857ed93fdc725e2.tar.xz
linux-a61f9e314ad8ab9434ddd989b857ed93fdc725e2.zip
ASoC: ux500: Provide better checking for Device Tree and/or Platform Data
These drivers will not work without platform specific data, which is passed in via Device Tree or Platform Data. To avoid the chance of NULL pointer dereferencing and alike, let's ensure we have at least one of the methods in play before continuing. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/ux500')
-rw-r--r--sound/soc/ux500/ux500_msp_dai.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/soc/ux500/ux500_msp_dai.c b/sound/soc/ux500/ux500_msp_dai.c
index c6fb5cce980e..bc042cce115f 100644
--- a/sound/soc/ux500/ux500_msp_dai.c
+++ b/sound/soc/ux500/ux500_msp_dai.c
@@ -771,10 +771,14 @@ static const struct snd_soc_component_driver ux500_msp_component = {
static int ux500_msp_drv_probe(struct platform_device *pdev)
{
struct ux500_msp_i2s_drvdata *drvdata;
+ struct msp_i2s_platform_data *pdata = pdev->dev.platform_data;
+ struct device_node *np = pdev->dev.of_node;
int ret = 0;
- dev_dbg(&pdev->dev, "%s: Enter (pdev->name = %s).\n", __func__,
- pdev->name);
+ if (!pdata && !np) {
+ dev_err(&pdev->dev, "No platform data or Device Tree found\n");
+ return -ENODEV;
+ }
drvdata = devm_kzalloc(&pdev->dev,
sizeof(struct ux500_msp_i2s_drvdata),