kernel: mips: fix an off-by-one in dma_capable

2022-02-12 00:33:25 +08:00
parent 8bd1c4d210
commit ccff63450a
1 changed files with 1 additions and 1 deletions
--- a/trunk/linux-4.4.x/arch/mips/include/asm/dma-mapping.h
+++ b/trunk/linux-4.4.x/arch/mips/include/asm/dma-mapping.h
@ -72,7 +72,7 @@ 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) {}