xen: relax signature check

Some versions of Xen 3.x set their magic number to "xen-3.[12]", so
relax the test to match them.

Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 94c39aaf695f..b6af3ea43c73 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1131,7 +1131,7 @@ asmlinkage void __init xen_start_kernel(void)
         if (!xen_start_info)
                 return;
 
-        BUG_ON(memcmp(xen_start_info->magic, "xen-3.0", 7) != 0);
+        BUG_ON(memcmp(xen_start_info->magic, "xen-3", 5) != 0);
 
         /* Install Xen paravirt ops */
         pv_info = xen_info;