mmc: bcm2835: Release DMA channel on driver unload
authorStefan Wahren <stefan.wahren@i2se.com>
Sun, 11 Nov 2018 20:23:55 +0000 (21:23 +0100)
committerUlf Hansson <ulf.hansson@linaro.org>
Mon, 17 Dec 2018 07:26:24 +0000 (08:26 +0100)
We need to release the slave DMA channel during driver unload.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
drivers/mmc/host/bcm2835.c

index 096e737..0711e25 100644 (file)
@@ -1446,6 +1446,9 @@ static int bcm2835_remove(struct platform_device *pdev)
        cancel_work_sync(&host->dma_work);
        cancel_delayed_work_sync(&host->timeout_work);
 
+       if (host->dma_chan_rxtx)
+               dma_release_channel(host->dma_chan_rxtx);
+
        mmc_free_host(host->mmc);
        platform_set_drvdata(pdev, NULL);