2 files changed, 2 insertions, 2 deletions

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 91d107d33c8d..ac6ed955ca0f 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -459,7 +459,7 @@ unsigned long get_wchan(struct task_struct *p)
         if (!p || p == current || p->state == TASK_RUNNING)
                 return 0;
 
-        stack_start = (unsigned long)(p->thread_info + 1);
+        stack_start = (unsigned long)end_of_stack(p);
         stack_end = ((unsigned long)p->thread_info) + THREAD_SIZE;
 
         fp = thread_saved_fp(p);
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index c9fe6f5f7ee3..c1a04ec830d1 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -164,7 +164,7 @@ static void dump_backtrace(struct pt_regs *regs, struct task_struct *tsk)
         } else if (verify_stack(fp)) {
                 printk("invalid frame pointer 0x%08x", fp);
                 ok = 0;
-        } else if (fp < (unsigned long)(tsk->thread_info + 1))
+        } else if (fp < (unsigned long)end_of_stack(tsk))
                 printk("frame pointer underflow");
         printk("\n");