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x86, realmode: Fix always-zero test in reboot_32.S

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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
This commit is contained in:
H. Peter Anvin 2012-05-08 21:22:39 +03:00
parent be60828920
commit 6feb592dce
1 changed files with 1 additions and 1 deletions
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2
arch/x86/realmode/rm/reboot_32.S
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@ -85,7 +85,7 @@ machine_real_restart_asm16:
movl %edx, %cr0
LJMPW_RM(3f)
3:
testb $0, %al
andw %ax, %ax
jz bios
apm: