diff options
| author | Shawn Lin <shawn.lin@rock-chips.com> | 2016-03-09 10:34:46 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-05-02 10:33:16 +0200 |
| commit | ab925a315eb3c6cd9fe25ff0ca5babb94a98b55c (patch) | |
| tree | 2bc1992fb80b85839790ec9578abe745f8ef9946 /drivers | |
| parent | 49b17858c19b94d46e3d872f85eccba45fff21f4 (diff) | |
| download | linux-ab925a315eb3c6cd9fe25ff0ca5babb94a98b55c.tar.bz2 | |
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 b36f09c3c441 ("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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 242f9a0769bd..45a406f7a9bf 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -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, |