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authorVinod Koul <vinod.koul@intel.com>2016-07-05 11:41:23 +0530
committerVinod Koul <vinod.koul@intel.com>2016-07-23 16:07:23 +0530
commit9200ebd8b23a32381e3647a4d326b07561e5d222 (patch)
tree5047b3e1a03454b6440dfc0798510d032b550686 /drivers/dma/s3c24xx-dma.c
parent46cf94d6ab38420690d890d9922bfc61a7b3e2c5 (diff)
downloadlinux-9200ebd8b23a32381e3647a4d326b07561e5d222.tar.bz2
dmaengine: s3c24xx: 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> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Diffstat (limited to 'drivers/dma/s3c24xx-dma.c')
-rw-r--r--drivers/dma/s3c24xx-dma.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c
index 0d2d187646f4..163d95f339e6 100644
--- a/drivers/dma/s3c24xx-dma.c
+++ b/drivers/dma/s3c24xx-dma.c
@@ -1359,6 +1359,18 @@ err_memcpy:
return ret;
}
+static void s3c24xx_dma_free_irq(struct platform_device *pdev,
+ struct s3c24xx_dma_engine *s3cdma)
+{
+ int i;
+
+ for (i = 0; i < s3cdma->pdata->num_phy_channels; i++) {
+ struct s3c24xx_dma_phy *phy = &s3cdma->phy_chans[i];
+
+ devm_free_irq(&pdev->dev, phy->irq, phy);
+ }
+}
+
static int s3c24xx_dma_remove(struct platform_device *pdev)
{
const struct s3c24xx_dma_platdata *pdata = dev_get_platdata(&pdev->dev);
@@ -1369,6 +1381,8 @@ static int s3c24xx_dma_remove(struct platform_device *pdev)
dma_async_device_unregister(&s3cdma->slave);
dma_async_device_unregister(&s3cdma->memcpy);
+ s3c24xx_dma_free_irq(pdev, s3cdma);
+
s3c24xx_dma_free_virtual_channels(&s3cdma->slave);
s3c24xx_dma_free_virtual_channels(&s3cdma->memcpy);