diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 709955ddaa4deeb822715e24e3e24a149868ff10..9d395961e71380484e7813f42240e6dacf5e6714 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -42,7 +42,7 @@ static inline int dma_supported(struct device *dev, u64 mask)
 static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
 {
 	if (!dev->dma_mask)
-		return 0;
+		return false;
 	return addr + size - 1 <= *dev->dma_mask;
 }