[PATCH] ppc64: force_sigsegv fixes

Replace do_exit() in 64bit signal code with force_sig/force_sigsegv where
appropriate.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/ppc64/kernel/signal.c

@@ -371,7 +371,8 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,
 	printk("badframe in sys_rt_sigreturn, regs=%p uc=%p &uc->uc_mcontext=%p\n",
 	       regs, uc, &uc->uc_mcontext);
 #endif
-	do_exit(SIGSEGV);
+	force_sig(SIGSEGV, current);
+	return 0;
 }
 
 static void setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info,
@@ -446,7 +447,7 @@ static void setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info,
 	printk("badframe in setup_rt_frame, regs=%p frame=%p newsp=%lx\n",
 	       regs, frame, newsp);
 #endif
-	do_exit(SIGSEGV);
+	force_sigsegv(signr, current);
 }