mmc: bcm2835: Release DMA channel on driver unload
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>
diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c
index 096e737..0711e25 100644
--- a/drivers/mmc/host/bcm2835.c
+++ b/drivers/mmc/host/bcm2835.c
@@ -1446,6 +1446,9 @@
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);
