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authorH. Peter Anvin <hpa@linux.intel.com>2012-05-08 20:22:39 +0200
committerH. Peter Anvin <hpa@linux.intel.com>2012-05-08 20:48:04 +0200
commit6feb592dceaed1a6cf26c9747b1180958d5156cd (patch)
treebb28e736267ea2fed45f28e04d54bb85ee9528e8 /arch/x86/realmode
parentx86, realmode: Move trampoline_*.S early in the link order (diff)
downloadlinux-6feb592dceaed1a6cf26c9747b1180958d5156cd.tar.xz
linux-6feb592dceaed1a6cf26c9747b1180958d5156cd.zip
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
Diffstat (limited to 'arch/x86/realmode')
-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 e90f8c4bbae2..50ba994ba921 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: