ARM64: DTS: Add rk3399-firefly uart4 device, node as /dev/ttyS1

[firefly-linux-kernel-4.4.55.git] / kernel / trace / trace_stack.c

diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index dda9e6742950305f36fbe920f9fe0c6f68d83fbf..202df6cffccaab333c02facc56b28082b09e5e42 100644 (file)
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -125,6 +125,13 @@ check_stack(unsigned long ip, unsigned long *stack)
                        break;
        }
 
+       /*
+        * Some archs may not have the passed in ip in the dump.
+        * If that happens, we need to show everything.
+        */
+       if (i == stack_trace_max.nr_entries)
+               i = 0;
+
        /*
         * Now find where in the stack these are.
         */