[GIT PULL] core/urgent fix

[Ingo Molnar]

Linus,

Please pull the latest core-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
core-urgent-for-linus

   # HEAD: 7eaf51a2e094229b75cc0c315f1cbbe2f3960058 stacktrace: Unbreak 
stack_trace_save_tsk_reliable()

Fix a stack_trace_save_tsk_reliable() regression.

 Thanks,

        Ingo

------------------>
Joe Lawrence (1):
      stacktrace: Unbreak stack_trace_save_tsk_reliable()


 kernel/stacktrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 27bafc1e271e..90d3e0bf0302 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -206,7 +206,7 @@ int stack_trace_save_tsk_reliable(struct task_struct *tsk, 
unsigned long *store,
 
        ret = arch_stack_walk_reliable(consume_entry, &c, tsk);
        put_task_stack(tsk);
-       return ret;
+       return ret ? ret : c.len;
 }
 #endif