Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
dmaengine: Fix a bug about BUG_ON() on DMA engine capability DMA_INTERRUPT.
The device->device_prep_dma_interrupt function is used by
DMA_INTERRUPT capability, not DMA_ZERO_SUM.
Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Acked-by: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
authored by Zhang Wei and committed by Dan Williams 9b941c66 56822843
+1
-1
drivers/dma/dmaengine.c
+1
-1
drivers/dma/dmaengine.c
···
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!device->device_prep_dma_zero_sum);
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BUG_ON(dma_has_cap(DMA_MEMSET, device->cap_mask) &&
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!device->device_prep_dma_memset);
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-
BUG_ON(dma_has_cap(DMA_ZERO_SUM, device->cap_mask) &&
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+
BUG_ON(dma_has_cap(DMA_INTERRUPT, device->cap_mask) &&
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!device->device_prep_dma_interrupt);
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BUG_ON(!device->device_alloc_chan_resources);