dmaengine: moxart-dma: 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: Jonas Jensen <jonas.jensen@gmail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/dma/moxart-dma.c b/drivers/dma/moxart-dma.c
index b3a1d9a22b61..a6e642792e5a 100644
--- a/drivers/dma/moxart-dma.c
+++ b/drivers/dma/moxart-dma.c
@@ -148,6 +148,7 @@ struct moxart_chan {
 struct moxart_dmadev {
         struct dma_device               dma_slave;
         struct moxart_chan              slave_chans[APB_DMA_MAX_CHANNEL];
+        unsigned int                    irq;
 };
 
 struct moxart_filter_data {
@@ -615,6 +616,7 @@ static int moxart_probe(struct platform_device *pdev)
                 dev_err(dev, "devm_request_irq failed\n");
                 return ret;
         }
+        mdc->irq = irq;
 
         ret = dma_async_device_register(&mdc->dma_slave);
         if (ret) {
@@ -638,6 +640,8 @@ static int moxart_remove(struct platform_device *pdev)
 {
         struct moxart_dmadev *m = platform_get_drvdata(pdev);
 
+        devm_free_irq(&pdev->dev, m->irq, m);
+
         dma_async_device_unregister(&m->dma_slave);
 
         if (pdev->dev.of_node)