When delivering a hw-breakpoint SIGTRAP to a compat task via ptrace, the
lack of a 'return' statement means we fallthrough to the native case,
which differs in its handling of 'si_errno'.
Although this looks to be harmless because the subsequent signal is
effectively ignored, it's confusing and unintentional, so add the
missing 'return'.
Signed-off-by: Keno Fischer <keno@juliacomputing.com>
Link: https://lore.kernel.org/r/20210202002109.GA624440@juliacomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
}
arm64_force_sig_ptrace_errno_trap(si_errno, bkpt->trigger,
desc);
+ return;
}
#endif
arm64_force_sig_fault(SIGTRAP, TRAP_HWBKPT, bkpt->trigger, desc);