Commit-ID:  979ac257b00c53aacec3eacf86142e8c00bee889
Gitweb:     http://git.kernel.org/tip/979ac257b00c53aacec3eacf86142e8c00bee889
Author:     Colin Ian King <[email protected]>
AuthorDate: Tue, 1 Mar 2016 23:46:20 +0000
Committer:  Arnaldo Carvalho de Melo <[email protected]>
CommitDate: Thu, 3 Mar 2016 11:10:37 -0300

perf script: Fix double free on command_line

The 'command_line' variable is free'd twice if db_export__branch_types()
fails. To avoid this, defer the free'ing of 'command_line' to after this
call so that the error return path will just free 'command_line' once.

Signed-off-by: Colin Ian King <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: He Kuang <[email protected]>
Cc: Javi Merino <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Link: 
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
---
 tools/perf/util/scripting-engines/trace-event-python.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/scripting-engines/trace-event-python.c 
b/tools/perf/util/scripting-engines/trace-event-python.c
index 309d90f..fbd0524 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1094,8 +1094,6 @@ static int python_start_script(const char *script, int 
argc, const char **argv)
                goto error;
        }
 
-       free(command_line);
-
        set_table_handlers(tables);
 
        if (tables->db_export_mode) {
@@ -1104,6 +1102,8 @@ static int python_start_script(const char *script, int 
argc, const char **argv)
                        goto error;
        }
 
+       free(command_line);
+
        return err;
 error:
        Py_Finalize();

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