ASoC: fsl: create function imx_pcm_fiq_exit()

Create function imx_pcm_fiq_exit() to be paired with imx_pcm_fiq_init()
just like the pair of imx_pcm_dma_init() and imx_pcm_dma_exit().
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/fsl/imx-pcm-fiq.c

@@ -314,3 +314,8 @@ int imx_pcm_fiq_init(struct platform_device *pdev)
 
 	return ret;
 }
+
+void imx_pcm_fiq_exit(struct platform_device *pdev)
+{
+	snd_soc_unregister_platform(&pdev->dev);
+}

sound/soc/fsl/imx-pcm.c

@@ -115,7 +115,7 @@ static int imx_pcm_probe(struct platform_device *pdev)
 static int imx_pcm_remove(struct platform_device *pdev)
 {
 	if (strcmp(pdev->id_entry->name, "imx-fiq-pcm-audio") == 0)
-		snd_soc_unregister_platform(&pdev->dev);
+		imx_pcm_fiq_exit(pdev);
 	else
 		imx_pcm_dma_exit(pdev);
 

sound/soc/fsl/imx-pcm.h

@@ -53,11 +53,16 @@ static inline void imx_pcm_dma_exit(struct platform_device *pdev)
 
 #ifdef CONFIG_SND_SOC_IMX_PCM_FIQ
 int imx_pcm_fiq_init(struct platform_device *pdev);
+void imx_pcm_fiq_exit(struct platform_device *pdev);
 #else
 static inline int imx_pcm_fiq_init(struct platform_device *pdev)
 {
 	return -ENODEV;
 }
+
+static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
+{
+}
 #endif
 
 #endif /* _IMX_PCM_H */