[SPARC64]: Fix show_stack() when stack argument is NULL.

It didn't handle that case at all, and now dump_stack()
can be implemented directly as show_stack(current, NULL)

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 4 deletions

diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 17123e9ecf78..9f7740eee8d2 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -112,15 +112,12 @@ static void __kprobes unhandled_fault(unsigned long address,
 
 static void bad_kernel_pc(struct pt_regs *regs, unsigned long vaddr)
 {
-        unsigned long *ksp;
-
         printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n",
                regs->tpc);
         printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]);
         print_symbol("RPC: <%s>\n", regs->u_regs[15]);
         printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr);
-        __asm__("mov %%sp, %0" : "=r" (ksp));
-        show_stack(current, ksp);
+        dump_stack();
         unhandled_fault(regs->tpc, current, regs);
 }