From: Vinod Koul <vinod.koul@intel.com>
Date: Mon, 4 Jul 2016 10:11:25 +0000 (+0530)
Subject: dmaengine: moxart-dma: explicitly freeup irq
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=144fa37f5b4f9b81dfab79c8d440b4aba8b07fde;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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>
---

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)