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-rw-r--r--arch/x86/boot/memory.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index cae3feb1035e..db75d07c3645 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -91,7 +91,7 @@ static int detect_memory_e801(void)
if (oreg.ax > 15*1024) {
return -1; /* Bogus! */
} else if (oreg.ax == 15*1024) {
- boot_params.alt_mem_k = (oreg.dx << 6) + oreg.ax;
+ boot_params.alt_mem_k = (oreg.bx << 6) + oreg.ax;
} else {
/*
* This ignores memory above 16MB if we have a memory