| From | Peter Ujfalusi <> | Subject | [RFC v02 01/15] dmaengine: core: Allow NULL mask pointer in __dma_device_satisfies_mask() | Date | Mon, 30 Nov 2015 15:45:31 +0200 |
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Treat as true condition the case when the mask is NULL.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> --- drivers/dma/dmaengine.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c index daf54a39bcc7..52c3eee48e2e 100644 --- a/drivers/dma/dmaengine.c +++ b/drivers/dma/dmaengine.c @@ -184,6 +184,9 @@ __dma_device_satisfies_mask(struct dma_device *device, { dma_cap_mask_t has; + if (!want) + return true; + bitmap_and(has.bits, want->bits, device->cap_mask.bits, DMA_TX_TYPE_END); return bitmap_equal(want->bits, has.bits, DMA_TX_TYPE_END); -- 2.6.3
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