[Xen-changelog] [linux-2.6.18-xen] [IA64] Fix __ioremap() paravirtualization.

["Xen patchbot-linux-2.6.18-xen" <patchbot-linux-2.6.18-xen@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1187903920 21600
# Node ID 057b47cada5c42a934c320f95863af2a6f031522
# Parent  ec6f71d1b3351faebbfb0345ca0ccfc3a52b5d7c
[IA64] Fix __ioremap() paravirtualization.

__ioremap() should return NULL when error.

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 arch/ia64/mm/ioremap.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r ec6f71d1b335 -r 057b47cada5c arch/ia64/mm/ioremap.c
--- a/arch/ia64/mm/ioremap.c    Wed Aug 22 08:09:20 2007 -0600
+++ b/arch/ia64/mm/ioremap.c    Thu Aug 23 15:18:40 2007 -0600
@@ -18,7 +18,7 @@ __ioremap (unsigned long offset, unsigne
 {
        offset = HYPERVISOR_ioremap(offset, size);
        if (IS_ERR_VALUE(offset))
-               return (void __iomem*)offset;
+               return NULL;
        return (void __iomem *) (__IA64_UNCACHED_OFFSET | offset);
 }
 

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