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authorH. Peter Anvin <hpa@linux.intel.com>2012-05-08 21:22:39 +0300
committerH. Peter Anvin <hpa@linux.intel.com>2012-05-08 11:48:04 -0700
commit6feb592dceaed1a6cf26c9747b1180958d5156cd (patch)
treebb28e736267ea2fed45f28e04d54bb85ee9528e8
parentbe60828920d23758da8124bed771404a0438f369 (diff)
x86, realmode: Fix always-zero test in reboot_32.S
A test instruction is an "and", and an and with zero is always zero. This would cause us to always take the BIOS path, not the APM path, in case anyone actually cares... Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Link: http://lkml.kernel.org/r/1336501366-28617-17-git-send-email-jarkko.sakkinen@intel.com
-rw-r--r--arch/x86/realmode/rm/reboot_32.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/realmode/rm/reboot_32.S b/arch/x86/realmode/rm/reboot_32.S
index e90f8c4bbae..50ba994ba92 100644
--- a/arch/x86/realmode/rm/reboot_32.S
+++ b/arch/x86/realmode/rm/reboot_32.S
@@ -85,7 +85,7 @@ machine_real_restart_asm16:
movl %edx, %cr0
LJMPW_RM(3f)
3:
- testb $0, %al
+ andw %ax, %ax
jz bios
apm: