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-rw-r--r--arch/x86/include/asm/io.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 2214958..84a638d 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -137,7 +137,7 @@ out:
#ifdef SLOW_IO_BY_JUMPING
#define __SLOW_DOWN_IO "\njmp 1f\n1:\tjmp 1f\n1:"
#else
-#define __SLOW_DOWN_IO "\noutb %%al,$0x80"
+#define __SLOW_DOWN_IO "\noutb %%al,$0xed"
#endif
#ifdef REALLY_SLOW_IO