signal/nds32: Use force_sig in unhandled_interruption and unhandled_exceptions

Neither unhandled_interrupt nor unhandled_exceptions fills in any of the
siginfo fields whend sending SIGKILL.  Further because it is SIGKILL
even if all of the fields were filled out appropriately it would be impossible
for the process to read any of the siginfo fields.  So simplfy things and
just use force_sig instead of force_sig_info.

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

arch/nds32/kernel/traps.c

@@ -318,29 +318,22 @@ void do_debug_trap(unsigned long entry, unsigned long addr,
 
 void unhandled_interruption(struct pt_regs *regs)
 {
-	siginfo_t si;
 	pr_emerg("unhandled_interruption\n");
 	show_regs(regs);
 	if (!user_mode(regs))
 		do_exit(SIGKILL);
-	si.si_signo = SIGKILL;
-	si.si_errno = 0;
-	force_sig_info(SIGKILL, &si, current);
+	force_sig(SIGKILL, current);
 }
 
 void unhandled_exceptions(unsigned long entry, unsigned long addr,
 			  unsigned long type, struct pt_regs *regs)
 {
-	siginfo_t si;
 	pr_emerg("Unhandled Exception: entry: %lx addr:%lx itype:%lx\n", entry,
 		 addr, type);
 	show_regs(regs);
 	if (!user_mode(regs))
 		do_exit(SIGKILL);
-	si.si_signo = SIGKILL;
-	si.si_errno = 0;
-	si.si_addr = (void *)addr;
-	force_sig_info(SIGKILL, &si, current);
+	force_sig(SIGKILL, current);
 }
 
 extern int do_page_fault(unsigned long entry, unsigned long addr,