x86: return correct error code from child_rip in x86_64 entry.S
Right now register edi is just cleared before calling do_exit.
That is wrong because correct return value will be ignored.
Value from rax should be copied to rdi instead of clearing edi.
AK: changed to 32bit move because it's strictly an int
[ tglx: arch/x86 adaptation ]
Signed-off-by: Andrey Mirkin <major@openvz.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index f1cacd4..3a058bb 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -988,7 +988,7 @@
movq %rsi, %rdi
call *%rax
# exit
- xorl %edi, %edi
+ mov %eax, %edi
call do_exit
CFI_ENDPROC
ENDPROC(child_rip)