[11/34] mips: fix an off-by-one in dma_capable

Message ID 20180112084232.2857-12-hch@lst.de
State New
Headers show
Series
  • [01/34] alpha: mark jensen as broken
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Commit Message

Christoph Hellwig Jan. 12, 2018, 8:42 a.m.
This makes it match the generic version.

Reported-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/mips/include/asm/dma-mapping.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index 0d9418d264f9..5c334ac15945 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -22,7 +22,7 @@  static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 	if (!dev->dma_mask)
 		return false;
 
-	return addr + size <= *dev->dma_mask;
+	return addr + size - 1 <= *dev->dma_mask;
 }
 
 static inline void dma_mark_clean(void *addr, size_t size) {}