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-rw-r--r--arch/parisc/mm/ioremap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 27384567a1d0..47a1d2ac9419 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -188,7 +188,7 @@ void __iomem * __ioremap(unsigned long phys_addr, unsigned long size, unsigned l
}
EXPORT_SYMBOL(__ioremap);
-void iounmap(void __iomem *addr)
+void iounmap(const volatile void __iomem *addr)
{
if (addr > high_memory)
return vfree((void *) (PAGE_MASK & (unsigned long __force) addr));