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mmc: dw_mmc: avoid using dmaengine_terminate_all 

dmaengine_terminate_all is deprecated and should be
replaced by more explicit synchronous and asynchronous
terminate functions. This change is based on the
commit b36f09c3c4 ("dmaengine: Add transfer termination
synchronization support"). Currently dw_mci_stop_dma
may be called under the spinlock, let's migrate
dmaengine_terminate_all to async terminate. This could
avoid the race condition of use-after-free resouce of
dmaengine once slave-dma driver implement the synchronize
method.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shawn Lin 2016-03-09 10:34:46 +08:00 committed by Ulf Hansson
parent 49b17858c1
commit ab925a315e
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/host/dw_mmc.c
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@ -680,7 +680,7 @@ static const struct dw_mci_dma_ops dw_mci_idmac_ops = {
static void dw_mci_edmac_stop_dma(struct dw_mci *host)
{
dmaengine_terminate_all(host->dms->ch);
dmaengine_terminate_async(host->dms->ch);
}
static int dw_mci_edmac_start_dma(struct dw_mci *host,