cc2caea5b6
dev_set_cma_area incorrectly assigned cma to global area on first call due to incorrect check. This patch fixes this issue. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
28 lines
526 B
C
28 lines
526 B
C
#ifndef ASM_DMA_CONTIGUOUS_H
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#define ASM_DMA_CONTIGUOUS_H
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#ifdef __KERNEL__
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#ifdef CONFIG_CMA
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#include <linux/device.h>
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#include <linux/dma-contiguous.h>
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static inline struct cma *dev_get_cma_area(struct device *dev)
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{
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if (dev && dev->cma_area)
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return dev->cma_area;
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return dma_contiguous_default_area;
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}
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static inline void dev_set_cma_area(struct device *dev, struct cma *cma)
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{
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if (dev)
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dev->cma_area = cma;
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if (!dev && !dma_contiguous_default_area)
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dma_contiguous_default_area = cma;
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}
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#endif
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#endif
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#endif
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