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x86: fix kprobe_handler reenable preemption

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Fix a preemption bug in kprobe_handler(). It has to call preempt_enable()
before returning.

Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Masami Hiramatsu
2008-01-30 13:32:01 +01:00
committed by Ingo Molnar
parent bde6f5f59c
commit ddc66df876
1 changed files with 2 additions and 1 deletions
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3
arch/x86/kernel/kprobes.c
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@@ -467,7 +467,8 @@ static int __kprobes kprobe_handler(struct pt_regs *regs)
arch_disarm_kprobe(p); arch_disarm_kprobe(p);
regs->ip = (unsigned long)p->addr; regs->ip = (unsigned long)p->addr;
reset_current_kprobe(); reset_current_kprobe();
return 1; ret = 1;
goto no_kprobe;
#endif #endif
} }
/* We have reentered the kprobe_handler(), since /* We have reentered the kprobe_handler(), since