[PATCH] arm: end_of_stack()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 91d107d..ac6ed95 100644 (file)
--- 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 c9fe6f5..c1a04ec 100644 (file)
--- 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");