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authorSamuel Bronson <naesten@gmail.com>2009-05-07 02:27:55 (GMT)
committerH. Peter Anvin <hpa@zytor.com>2009-05-07 03:35:26 (GMT)
commit975e5f45500dff6d15c0001bb662e9aac0ce0076 (patch)
treeed9dfb7683b5f652ac6075bda22aeb42dee34de2
parentbf293c17b26b8854241df08b9b63f7270cbde012 (diff)
downloadlinux-fsl-qoriq-975e5f45500dff6d15c0001bb662e9aac0ce0076.tar.xz
x86: use symbolic name for VM86_SIGNAL when used as vm86 default return
This code has apparently used "0" and not VM86_SIGNAL since Linux 1.1.9, when Linus added VM86_SIGNAL to vm86.h. This patch changes the code to use the symbolic name. The magic 0 tripped me up in trying to extend the vm86(2) manpage to actually explain vm86()'s interface -- my greps for VM86_SIGNAL came up fruitless. [ Impact: cleanup; no object code change ] Signed-off-by: Samuel Bronson <naesten@gmail.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
-rw-r--r--arch/x86/kernel/vm86_32.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index d7ac84e..b8035a0 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -318,9 +318,9 @@ static void do_sys_vm86(struct kernel_vm86_struct *info, struct task_struct *tsk
}
/*
- * Save old state, set default return value (%ax) to 0
+ * Save old state, set default return value (%ax) to 0 (VM86_SIGNAL)
*/
- info->regs32->ax = 0;
+ info->regs32->ax = VM86_SIGNAL;
tsk->thread.saved_sp0 = tsk->thread.sp0;
tsk->thread.saved_fs = info->regs32->fs;
tsk->thread.saved_gs = get_user_gs(info->regs32);