score: Use get_signal() signal_setup_done()

Use the more generic functions get_signal() signal_setup_done()
for signal delivery.

Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 18 insertions, 25 deletions

diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c
index a00fba32b0eb..1651807774ad 100644
--- a/arch/score/kernel/signal.c
+++ b/arch/score/kernel/signal.c
@@ -173,15 +173,15 @@ badframe:
         return 0;
 }
 
-static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
-                int signr, sigset_t *set, siginfo_t *info)
+static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs,
+                          sigset_t *set)
 {
         struct rt_sigframe __user *frame;
         int err = 0;
 
-        frame = get_sigframe(ka, regs, sizeof(*frame));
+        frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
         if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-                goto give_sigsegv;
+                return -EFAULT;
 
         /*
          * Set up the return code ...
@@ -194,7 +194,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
         err |= __put_user(0x80008002, frame->rs_code + 1);
         flush_cache_sigtramp((unsigned long) frame->rs_code);
 
-        err |= copy_siginfo_to_user(&frame->rs_info, info);
+        err |= copy_siginfo_to_user(&frame->rs_info, &ksig->info);
         err |= __put_user(0, &frame->rs_uc.uc_flags);
         err |= __put_user(NULL, &frame->rs_uc.uc_link);
         err |= __save_altstack(&frame->rs_uc.uc_stack, regs->regs[0]);
@@ -202,26 +202,23 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
         err |= __copy_to_user(&frame->rs_uc.uc_sigmask, set, sizeof(*set));
 
         if (err)
-                goto give_sigsegv;
+                return -EFAULT;
 
         regs->regs[0] = (unsigned long) frame;
         regs->regs[3] = (unsigned long) frame->rs_code;
-        regs->regs[4] = signr;
+        regs->regs[4] = ksig->sig;
         regs->regs[5] = (unsigned long) &frame->rs_info;
         regs->regs[6] = (unsigned long) &frame->rs_uc;
-        regs->regs[29] = (unsigned long) ka->sa.sa_handler;
-        regs->cp0_epc = (unsigned long) ka->sa.sa_handler;
+        regs->regs[29] = (unsigned long) ksig->ka.sa.sa_handler;
+        regs->cp0_epc = (unsigned long) ksig->ka.sa.sa_handler;
 
         return 0;
-
-give_sigsegv:
-        force_sigsegv(signr, current);
-        return -EFAULT;
 }
 
-static void handle_signal(unsigned long sig, siginfo_t *info,
-        struct k_sigaction *ka, struct pt_regs *regs)
+static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 {
+        int ret;
+
         if (regs->is_syscall) {
                 switch (regs->regs[4]) {
                 case ERESTART_RESTARTBLOCK:
@@ -229,7 +226,7 @@ static void handle_signal(unsigned long sig, siginfo_t *info,
                         regs->regs[4] = EINTR;
                         break;
                 case ERESTARTSYS:
-                        if (!(ka->sa.sa_flags & SA_RESTART)) {
+                        if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
                                 regs->regs[4] = EINTR;
                                 break;
                         }
@@ -245,17 +242,14 @@ static void handle_signal(unsigned long sig, siginfo_t *info,
         /*
          * Set up the stack frame
          */
-        if (setup_rt_frame(ka, regs, sig, sigmask_to_save(), info) < 0)
-                return;
+        ret = setup_rt_frame(ksig, regs, sigmask_to_save());
 
-        signal_delivered(sig, info, ka, regs, 0);
+        signal_setup_done(ret, ksig, 0);
 }
 
 static void do_signal(struct pt_regs *regs)
 {
-        struct k_sigaction ka;
-        siginfo_t info;
-        int signr;
+        struct ksignal ksig;
 
         /*
          * We want the common case to go fast, which is why we may in certain
@@ -265,10 +259,9 @@ static void do_signal(struct pt_regs *regs)
         if (!user_mode(regs))
                 return;
 
-        signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-        if (signr > 0) {
+        if (get_signal(&ksig)) {
                 /* Actually deliver the signal.  */
-                handle_signal(signr, &info, &ka, regs);
+                handle_signal(&ksig, regs);
                 return;
         }