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dmaengine: fsl-edma: explicitly freeup irq 

dmaengine device should explicitly call devm_free_irq() when using
devm_request_irq().

The irq is still ON when devices remove is executed and irq should be
quiesced before remove is completed.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Cc: Jingchang Lu <b35083@freescale.com>
Cc: Peter Griffin <peter.griffin@linaro.org>
This commit is contained in:
Vinod Koul 2016-07-01 17:34:14 +05:30
parent f4e0628ba3
commit 476c7c809e
1 changed files with 12 additions and 0 deletions
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12
drivers/dma/fsl-edma.c
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@ -852,6 +852,17 @@ fsl_edma_irq_init(struct platform_device *pdev, struct fsl_edma_engine *fsl_edma
return 0;
}
static void fsl_edma_irq_exit(
struct platform_device *pdev, struct fsl_edma_engine *fsl_edma)
{
if (fsl_edma->txirq == fsl_edma->errirq) {
devm_free_irq(&pdev->dev, fsl_edma->txirq, fsl_edma);
} else {
devm_free_irq(&pdev->dev, fsl_edma->txirq, fsl_edma);
devm_free_irq(&pdev->dev, fsl_edma->errirq, fsl_edma);
}
}
static void fsl_disable_clocks(struct fsl_edma_engine *fsl_edma)
{
int i;
@ -989,6 +1000,7 @@ static int fsl_edma_remove(struct platform_device *pdev)
struct device_node *np = pdev->dev.of_node;
struct fsl_edma_engine *fsl_edma = platform_get_drvdata(pdev);
fsl_edma_irq_exit(pdev, fsl_edma);
of_dma_controller_free(np);
dma_async_device_unregister(&fsl_edma->dma_dev);
fsl_disable_clocks(fsl_edma);