linux-kernel - [PATCH 6/6] dmaengine: tegra-apb: Disable interrupts on removal

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Message-ID: <1444983957-18691-7-git-send-email-jonathanh@nvidia.com>
Date:	Fri, 16 Oct 2015 09:25:57 +0100
From:	Jon Hunter <jonathanh@...dia.com>
To:	Laxman Dewangan <ldewangan@...dia.com>,
	Vinod Koul <vinod.koul@...el.com>,
	Stephen Warren <swarren@...dotorg.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Alexandre Courbot <gnurou@...il.com>
CC:	<dmaengine@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Jon Hunter <jonathanh@...dia.com>
Subject: [PATCH 6/6] dmaengine: tegra-apb: Disable interrupts on removal

On driver removal, before killing any tasklets, ensure that the channel
interrupts are disabled so that the tasklet will not try to run during
or after the removal of the driver.

Signed-off-by: Jon Hunter <jonathanh@...dia.com>
---
 drivers/dma/tegra20-apb-dma.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 2bfab8d28b53..0dd6e7deaa8e 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -1492,6 +1492,7 @@ static int tegra_dma_remove(struct platform_device *pdev)
 
 	for (i = 0; i < tdma->chip_data->nr_channels; ++i) {
 		tdc = &tdma->channels[i];
+		disable_irq(tdc->irq);
 		tasklet_kill(&tdc->tasklet);
 	}
 
-- 
2.1.4

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