1 files changed, 7 insertions, 9 deletions

diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index c85241006e32..2be4214b3905 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -142,11 +142,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
         struct reg_window32 *rw;
         int count = 0;
 
-        if (tsk != NULL)
-                task_base = (unsigned long) task_stack_page(tsk);
-        else
-                task_base = (unsigned long) current_thread_info();
+        if (!tsk)
+                tsk = current;
 
+        if (tsk == current && !_ksp)
+                __asm__ __volatile__("mov       %%fp, %0" : "=r" (_ksp));
+
+        task_base = (unsigned long) task_stack_page(tsk);
         fp = (unsigned long) _ksp;
         do {
                 /* Bogus frame pointer? */
@@ -164,11 +166,7 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp)
 
 void dump_stack(void)
 {
-        unsigned long *ksp;
-
-        __asm__ __volatile__("mov       %%fp, %0"
-                             : "=r" (ksp));
-        show_stack(current, ksp);
+        show_stack(current, NULL);
 }
 
 EXPORT_SYMBOL(dump_stack);