[PATCH] powerpc: Another maple merge tree fix

[powerpc.git] / arch / ppc64 / kernel / signal32.c

diff --git a/arch/ppc64/kernel/signal32.c b/arch/ppc64/kernel/signal32.c
index b0e167d..a8b7a5a 100644 (file)
--- a/arch/ppc64/kernel/signal32.c
+++ b/arch/ppc64/kernel/signal32.c
@@ -657,7 +657,7 @@ static int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
 
        /* Save user registers on the stack */
        frame = &rt_sf->uc.uc_mcontext;
-       if (put_user(regs->gpr[1], (unsigned long __user *)newsp))
+       if (put_user(regs->gpr[1], (u32 __user *)newsp))
                goto badframe;
 
        if (vdso32_rt_sigtramp && current->thread.vdso_base) {
@@ -842,7 +842,7 @@ static int handle_signal32(unsigned long sig, struct k_sigaction *ka,
                regs->link = (unsigned long) frame->mctx.tramp;
        }
 
-       if (put_user(regs->gpr[1], (unsigned long __user *)newsp))
+       if (put_user(regs->gpr[1], (u32 __user *)newsp))
                goto badframe;
        regs->gpr[1] = (unsigned long) newsp;
        regs->gpr[3] = sig;
@@ -970,17 +970,26 @@ int do_signal32(sigset_t *oldset, struct pt_regs *regs)
                newsp = regs->gpr[1];
        newsp &= ~0xfUL;
 
+       /*
+        * Reenable the DABR before delivering the signal to
+        * user space. The DABR will have been cleared if it
+        * triggered inside the kernel.
+        */
+       if (current->thread.dabr)
+               set_dabr(current->thread.dabr);
+
        /* Whee!  Actually deliver the signal.  */
        if (ka.sa.sa_flags & SA_SIGINFO)
                ret = handle_rt_signal32(signr, &ka, &info, oldset, regs, newsp);
        else
                ret = handle_signal32(signr, &ka, &info, oldset, regs, newsp);
 
-       if (ret && !(ka.sa.sa_flags & SA_NODEFER)) {
+       if (ret) {
                spin_lock_irq(&current->sighand->siglock);
                sigorsets(&current->blocked, &current->blocked,
                          &ka.sa.sa_mask);
-               sigaddset(&current->blocked, signr);
+               if (!(ka.sa.sa_flags & SA_NODEFER))
+                       sigaddset(&current->blocked, signr);
                recalc_sigpending();
                spin_unlock_irq(&current->sighand->siglock);
        }