1 files changed, 11 insertions, 7 deletions

diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index fdd0c6430e5a..9ee98eefc44d 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -14,30 +14,34 @@ static int save_stack_stack(void *data, char *name)
         return 0;
 }
 
-static void
+static int
 __save_stack_address(void *data, unsigned long addr, bool reliable, bool nosched)
 {
         struct stack_trace *trace = data;
 #ifdef CONFIG_FRAME_POINTER
         if (!reliable)
-                return;
+                return 0;
 #endif
         if (nosched && in_sched_functions(addr))
-                return;
+                return 0;
         if (trace->skip > 0) {
                 trace->skip--;
-                return;
+                return 0;
         }
-        if (trace->nr_entries < trace->max_entries)
+        if (trace->nr_entries < trace->max_entries) {
                 trace->entries[trace->nr_entries++] = addr;
+                return 0;
+        } else {
+                return -1; /* no more room, stop walking the stack */
+        }
 }
 
-static void save_stack_address(void *data, unsigned long addr, int reliable)
+static int save_stack_address(void *data, unsigned long addr, int reliable)
 {
         return __save_stack_address(data, addr, reliable, false);
 }
 
-static void
+static int
 save_stack_address_nosched(void *data, unsigned long addr, int reliable)
 {
         return __save_stack_address(data, addr, reliable, true);