perf machine: Free root_dir in machine__init() error path

Free root_dir in machine__init() error path.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20180215122635.24029-4-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index b05a674..c976384 100644 (file)
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -50,6 +50,8 @@ static void machine__threads_init(struct machine *machine)
 
 int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 {
+       int err = -ENOMEM;
+
        memset(machine, 0, sizeof(*machine));
        map_groups__init(&machine->kmaps, machine);
        RB_CLEAR_NODE(&machine->rb_node);
@@ -79,7 +81,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
                char comm[64];
 
                if (thread == NULL)
-                       return -ENOMEM;
+                       goto out;
 
                snprintf(comm, sizeof(comm), "[guest/%d]", pid);
                thread__set_comm(thread, comm, 0);
@@ -87,7 +89,11 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
        }
 
        machine->current_tid = NULL;
+       err = 0;
 
+out:
+       if (err)
+               zfree(&machine->root_dir);
        return 0;
 }