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authorLubomir Rintel <lkundrak@v3.sk>2020-04-19 18:49:06 +0200
committerVinod Koul <vkoul@kernel.org>2020-04-23 12:42:51 +0530
commit363c32701c7fdc8265a84b21a6a4f45d1202b9ca (patch)
tree9ac3f931413b11cce707c05580de6dffcf1db1ce /drivers/dma
parent2e45676a4d33af47259fa186ea039122ce263ba9 (diff)
downloadlinux-363c32701c7fdc8265a84b21a6a4f45d1202b9ca.tar.bz2
dmaengine: mmp_tdma: Do not ignore slave config validation errors
With an invalid dma_slave_config set previously, mmp_tdma_prep_dma_cyclic() would detect an error whilst configuring the channel, but proceed happily on: [ 120.756530] mmp-tdma d42a0800.adma: mmp_tdma: unknown burst size. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Link: https://lore.kernel.org/r/20200419164912.670973-2-lkundrak@v3.sk Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/mmp_tdma.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 10117f271b12..51e08c16756a 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -443,7 +443,8 @@ static struct dma_async_tx_descriptor *mmp_tdma_prep_dma_cyclic(
if (!desc)
goto err_out;
- mmp_tdma_config_write(chan, direction, &tdmac->slave_config);
+ if (mmp_tdma_config_write(chan, direction, &tdmac->slave_config))
+ goto err_out;
while (buf < buf_len) {
desc = &tdmac->desc_arr[i];