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Commit f6ed1eca authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

signal/nds32: Use force_sig(SIGILL) in do_revisn 



As originally committed do_revisn would deliver a siginfo for SIGILL
with an si_code composed of random stack contents.  That makes no
sense and is not something userspace can depend on.  So simplify
the code and just use "force_sig(SIG_ILL, current)" instead.

Fixes: 2923f5ea ("nds32: Exception handling")
Cc: Vincent Chen <vincentc@andestech.com>
Cc: Greentime Hu <greentime@andestech.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
parent be5c2ff0

arch/nds32/kernel/traps.c

+1 −4
Original line number Diff line number Diff line
@@ -356,14 +356,11 @@ void do_dispatch_tlb_misc(unsigned long entry, unsigned long addr, 


void do_revinsn(struct pt_regs *regs)

{

	siginfo_t si;

	pr_emerg("Reserved Instruction\n");

	show_regs(regs);

	if (!user_mode(regs))

		do_exit(SIGILL);

	si.si_signo = SIGILL;

	si.si_errno = 0;

	force_sig_info(SIGILL, &si, current);

	force_sig(SIGILL, current);

}



#ifdef CONFIG_ALIGNMENT_TRAP