tracing: Have error path in predicate_parse() free its allocated memory

[linux-2.6-block.git] / kernel / trace / trace_events_filter.c

diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index c773b8fb270c51a99f259edb51fd1f55b7202517..c9a74f82b14a279c270268c43cad6287d691d438 100644 (file)
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -452,8 +452,10 @@ predicate_parse(const char *str, int nr_parens, int nr_preds,
 
                switch (*next) {
                case '(':                                       /* #2 */
-                       if (top - op_stack > nr_parens)
-                               return ERR_PTR(-EINVAL);
+                       if (top - op_stack > nr_parens) {
+                               ret = -EINVAL;
+                               goto out_free;
+                       }
                        *(++top) = invert;
                        continue;
                case '!':                                       /* #3 */