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arm64: fault: avoid send SIGBUS two times
do_sea() calls arm64_notify_die() which will always signal user-space. It also returns whether APEI claimed the external abort as a RAS notification. If it returns failure do_mem_abort() will signal user-space too. do_mem_abort() wants to know if we handled the error, we always call arm64_notify_die() so can always return success. Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com> Reviewed-by: James Morse <james.morse@arm.com> Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com> Signed-off-by: Will Deacon <will.deacon@arm.com>
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@ -574,7 +574,6 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
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{
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struct siginfo info;
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const struct fault_info *inf;
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int ret = 0;
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inf = esr_to_fault_info(esr);
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pr_err("Synchronous External Abort: %s (0x%08x) at 0x%016lx\n",
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@ -589,7 +588,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
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if (interrupts_enabled(regs))
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nmi_enter();
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ret = ghes_notify_sea();
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ghes_notify_sea();
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if (interrupts_enabled(regs))
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nmi_exit();
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@ -604,7 +603,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs)
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info.si_addr = (void __user *)addr;
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arm64_notify_die("", regs, &info, esr);
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return ret;
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return 0;
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}
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static const struct fault_info fault_info[] = {
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