We need to release the slave DMA channel during driver unload. Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx> --- drivers/mmc/host/bcm2835.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mmc/host/bcm2835.c b/drivers/mmc/host/bcm2835.c index a251be2..45724ef 100644 --- a/drivers/mmc/host/bcm2835.c +++ b/drivers/mmc/host/bcm2835.c @@ -1457,6 +1457,9 @@ 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); -- 2.7.4