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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2016-05-10 17:43:34 (GMT)
committerVinod Koul <vinod.koul@intel.com>2016-05-12 05:44:56 (GMT)
commitdd4e91d538b3d16d5241575a3fb654a9aa50392c (patch)
tree6d0dc2db2bb6347e567666d7fbc2a8bd8cf8d080 /drivers/dma
parent757d12e5849be549076901b0d33c60d5f360269c (diff)
downloadlinux-dd4e91d538b3d16d5241575a3fb654a9aa50392c.tar.xz
dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC
When check for capabilities recognize slave support by either 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> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/dmaengine.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 3e55755..42ef345 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;
/*