dmaengine: nbpfaxi: 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: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/dma/nbpfaxi.c b/drivers/dma/nbpfaxi.c
index 9f0e98b75eb9..f489f4e3429f 100644
--- a/drivers/dma/nbpfaxi.c
+++ b/drivers/dma/nbpfaxi.c
@@ -227,6 +227,7 @@ struct nbpf_device {
         void __iomem *base;
         struct clk *clk;
         const struct nbpf_config *config;
+        unsigned int eirq;
         struct nbpf_channel chan[];
 };
 
@@ -1375,6 +1376,7 @@ static int nbpf_probe(struct platform_device *pdev)
                                IRQF_SHARED, "dma error", nbpf);
         if (ret < 0)
                 return ret;
+        nbpf->eirq = eirq;
 
         INIT_LIST_HEAD(&dma_dev->channels);
 
@@ -1446,6 +1448,15 @@ e_clk_off:
 static int nbpf_remove(struct platform_device *pdev)
 {
         struct nbpf_device *nbpf = platform_get_drvdata(pdev);
+        int i;
+
+        devm_free_irq(&pdev->dev, nbpf->eirq, nbpf);
+
+        for (i = 0; i < nbpf->config->num_channels; i++) {
+                struct nbpf_channel *chan = nbpf->chan + i;
+
+                devm_free_irq(&pdev->dev, chan->irq, chan);
+        }
 
         of_dma_controller_free(pdev->dev.of_node);
         dma_async_device_unregister(&nbpf->dma_dev);