From: Vinod Koul <vinod.koul@intel.com>
Date: Sat, 2 Jul 2016 18:32:29 +0000 (+0530)
Subject: dmaengine: k3dma: explicitly freeup irq
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=486b10a255f70735585c90d334422da65dfe43ac;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

dmaengine: k3dma: 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>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
---

diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index 35961af6e4d7..9364dac85c0c 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -102,6 +102,7 @@ struct k3_dma_dev {
 	struct clk		*clk;
 	u32			dma_channels;
 	u32			dma_requests;
+	unsigned int		irq;
 };
 
 #define to_k3_dma(dmadev) container_of(dmadev, struct k3_dma_dev, slave)
@@ -703,6 +704,8 @@ static int k3_dma_probe(struct platform_device *op)
 	if (ret)
 		return ret;
 
+	d->irq = irq;
+
 	/* init phy channel */
 	d->phy = devm_kzalloc(&op->dev,
 		d->dma_channels * sizeof(struct k3_dma_phy), GFP_KERNEL);
@@ -785,6 +788,8 @@ static int k3_dma_remove(struct platform_device *op)
 	dma_async_device_unregister(&d->slave);
 	of_dma_controller_free((&op->dev)->of_node);
 
+	devm_free_irq(&op->dev, d->irq, d);
+
 	list_for_each_entry_safe(c, cn, &d->slave.channels, vc.chan.device_node) {
 		list_del(&c->vc.chan.device_node);
 		tasklet_kill(&c->vc.task);