From aa78bcfa01dec3cdbde3cda098ce32abbd9c3bf6 Mon Sep 17 00:00:00 2001 From: Brian Gerst Date: Tue, 10 Feb 2009 09:51:45 -0500 Subject: x86: use pt_regs pointer in do_device_not_available() The generic exception handler (error_code) passes in the pt_regs pointer and the error code (unused in this case). The commit "x86: fix math_emu register frame access" changed this to pass by value, which doesn't work correctly with stack protector enabled. Change it back to use the pt_regs pointer. Signed-off-by: Brian Gerst Acked-by: Tejun Heo Signed-off-by: Ingo Molnar --- arch/x86/kernel/traps.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch/x86/kernel/traps.c') diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 3b7b2e190201..71a8f871331e 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -905,19 +905,20 @@ void math_emulate(struct math_emu_info *info) } #endif /* CONFIG_MATH_EMULATION */ -dotraplinkage void __kprobes do_device_not_available(struct pt_regs regs) +dotraplinkage void __kprobes +do_device_not_available(struct pt_regs *regs, long error_code) { #ifdef CONFIG_X86_32 if (read_cr0() & X86_CR0_EM) { struct math_emu_info info = { }; - conditional_sti(®s); + conditional_sti(regs); - info.regs = ®s; + info.regs = regs; math_emulate(&info); } else { math_state_restore(); /* interrupts still off */ - conditional_sti(®s); + conditional_sti(regs); } #else math_state_restore(); -- cgit v1.2.2