From bee8ce809fb1c877388be032b468574a1cfff9ef Mon Sep 17 00:00:00 2001 From: Haavard Skinnemoen Date: Tue, 24 Oct 2006 10:12:41 +0200 Subject: [PATCH] AVR32: Don't try to iounmap P2 segment addresses While ioremap() will happily map a physical address through the P2 (uncached) segment when appropriate, iounmap() doesn't know how to handle those mappings. This patch makes iounmap() do the right thing, i.e. nothing, for such mappings. Signed-off-by: Haavard Skinnemoen Signed-off-by: Linus Torvalds --- arch/avr32/mm/ioremap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/avr32/mm/ioremap.c b/arch/avr32/mm/ioremap.c index 8cfec65e37f..3437c82434a 100644 --- a/arch/avr32/mm/ioremap.c +++ b/arch/avr32/mm/ioremap.c @@ -77,6 +77,8 @@ void __iounmap(void __iomem *addr) if ((unsigned long)addr >= P4SEG) return; + if (PXSEG(addr) == P2SEG) + return; p = remove_vm_area((void *)(PAGE_MASK & (unsigned long __force)addr)); if (unlikely(!p)) { -- cgit v1.2.3