[PATCH v1 1/2] dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC

Andy Shevchenko
2016-05-04T19:29:48Z

When check for capabilities recognize slave support by eother DMA_SLAVE or
DMA_CYCLIC bit set. If we don't do that the user can't get a normally worked
DMA support for engines that doesn't have one of the mentioned bits set.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/dma/dmaengine.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 5ff79a0..59eb4fa 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -482,8 +482,8 @@ int dma_get_slave_caps(struct dma_chan *chan, struct dma_slave_caps *caps)
device = chan->device;

/* check if the channel supports slave transactions */
- if ((!test_bit(DMA_SLAVE, device->cap_mask.bits)) ||
- (!test_bit(DMA_CYCLIC, device->cap_mask.bits)))
+ if (!(test_bit(DMA_SLAVE, device->cap_mask.bits) ||
+ test_bit(DMA_CYCLIC, device->cap_mask.bits)))
return -ENXIO;

/*
--
2.8.1