Merge ../linux-2.6-watchdog-mm

[linux-drm-fsl-dcu.git] / arch / powerpc / kernel / traps.c

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index d9f10f2fc372b2ebde2bb24dbbb82267383295d7..c66b4771ef445e264194bbc8ac039ce9297b31e2 100644 (file)
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -843,7 +843,7 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 
 void alignment_exception(struct pt_regs *regs)
 {
-       int fixed = 0;
+       int sig, code, fixed = 0;
 
        /* we don't implement logging of alignment exceptions */
        if (!(current->thread.align_ctl & PR_UNALIGN_SIGBUS))
@@ -857,14 +857,16 @@ void alignment_exception(struct pt_regs *regs)
 
        /* Operand address was bad */
        if (fixed == -EFAULT) {
-               if (user_mode(regs))
-                       _exception(SIGSEGV, regs, SEGV_ACCERR, regs->dar);
-               else
-                       /* Search exception table */
-                       bad_page_fault(regs, regs->dar, SIGSEGV);
-               return;
+               sig = SIGSEGV;
+               code = SEGV_ACCERR;
+       } else {
+               sig = SIGBUS;
+               code = BUS_ADRALN;
        }
-       _exception(SIGBUS, regs, BUS_ADRALN, regs->dar);
+       if (user_mode(regs))
+               _exception(sig, regs, code, regs->dar);
+       else
+               bad_page_fault(regs, regs->dar, sig);
 }
 
 void StackOverflow(struct pt_regs *regs)
@@ -900,14 +902,13 @@ void kernel_fp_unavailable_exception(struct pt_regs *regs)
 
 void altivec_unavailable_exception(struct pt_regs *regs)
 {
-#if !defined(CONFIG_ALTIVEC)
        if (user_mode(regs)) {
                /* A user program has executed an altivec instruction,
                   but this kernel doesn't support altivec. */
                _exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
                return;
        }
-#endif
+
        printk(KERN_EMERG "Unrecoverable VMX/Altivec Unavailable Exception "
                        "%lx at %lx\n", regs->trap, regs->nip);
        die("Unrecoverable VMX/Altivec Unavailable Exception", regs, SIGABRT);