[PATCH] asm-generic/io.h: give stub iounmap() on !MMU same prototype as elsewhere

[Adam Borowski <kilobyte@xxxxxxxxxx>]

It made -Werror sad.

Signed-off-by: Adam Borowski <kilobyte@xxxxxxxxxx>
---
 include/asm-generic/io.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index e93375c710b9..dea1d36a6402 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -957,7 +957,7 @@ static inline void __iomem *ioremap(phys_addr_t offset, size_t size)
 
 #ifndef iounmap
 #define iounmap iounmap
-static inline void iounmap(void __iomem *addr)
+static inline void iounmap(volatile void __iomem *addr)
 {
 }
 #endif
-- 
2.33.0