1 files changed, 5 insertions, 2 deletions

diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 4025fe4f928f..90bf130f09bc 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -37,13 +37,16 @@ print_ftrace_graph_addr(unsigned long addr, void *data,
                         const struct stacktrace_ops *ops,
                         struct thread_info *tinfo, int *graph)
 {
-        struct task_struct *task = tinfo->task;
+        struct task_struct *task;
         unsigned long ret_addr;
-        int index = task->curr_ret_stack;
+        int index;
 
         if (addr != (unsigned long)return_to_handler)
                 return;
 
+        task = tinfo->task;
+        index = task->curr_ret_stack;
+
         if (!task->ret_stack || index < *graph)
                 return;