perf tools: Fix memory leak on error

cppcheck reported:
[util/event.c:480]: (error) Memory leak: event

Signed-off-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Link: http://lkml.kernel.org/r/2717013.8dV0naNhAV@storm
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 3cf2c3e0605f249543c11ddbe2c39cb2607a6f7a..5cd13d768cecee1a630ca51715dba4b6d8f19f0b 100644 (file)
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -476,8 +476,10 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
                }
        }
 
-       if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0)
+       if (kallsyms__parse(filename, &args, find_symbol_cb) <= 0) {
+               free(event);
                return -ENOENT;
+       }
 
        map = machine->vmlinux_maps[MAP__FUNCTION];
        size = snprintf(event->mmap.filename, sizeof(event->mmap.filename),