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

From	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Newsgroups	linux.kernel
Subject	[PATCH v1 1/2] dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC
Date	2016-05-04 21:30 +0200
Message-ID	<rvaEH-1v3-45@gated-at.bofh.it> (permalink)
References	<rvaEH-1v3-47@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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

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[PATCH v1 1/2] dmaengine: slave means at least one of DMA_SLAVE, DMA_CYCLIC Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-05-04 21:30 +0200
  Re: [PATCH v1 1/2] dmaengine: slave means at least one of DMA_SLAVE,  DMA_CYCLIC Vinod Koul <vinod.koul@intel.com> - 2016-05-10 18:00 +0200
    Re: [PATCH v1 1/2] dmaengine: slave means at least one of DMA_SLAVE,  DMA_CYCLIC Vinod Koul <vinod.koul@intel.com> - 2016-05-10 18:10 +0200
    Re: [PATCH v1 1/2] dmaengine: slave means at least one of  DMA_SLAVE, DMA_CYCLIC Andy Shevchenko <andriy.shevchenko@linux.intel.com> - 2016-05-10 18:10 +0200

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