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authorArnaldo Carvalho de Melo <acme@redhat.com>2016-10-25 17:20:47 -0300
committerBen Hutchings <ben@decadent.org.uk>2017-03-16 02:26:17 +0000
commit3dab7d4f5119373f0092fc33d9c7bf599c39eb32 (patch)
tree03f132228d99b66744bdfb8d99a133aef8651b53 /tools
parent5c04a2622839a8a2246d9b74ced2e6a18d53c7c5 (diff)
perf scripting: Avoid leaking the scripting_context variable
commit cf346d5bd4b9d61656df2f72565c9b354ef3ca0d upstream. Both register_perl_scripting() and register_python_scripting() allocate this variable, fix it by checking if it already was. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Tom Zanussi <tzanussi@gmail.com> Cc: Wang Nan <wangnan0@huawei.com> Fixes: 7e4b21b84c43 ("perf/scripts: Add Python scripting engine") Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'tools')
-rw-r--r--tools/perf/util/trace-event-scripting.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index 57aaccc1692e..6a1fe83386ea 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -90,7 +90,8 @@ static void register_python_scripting(struct scripting_ops *scripting_ops)
if (err)
die("error registering py script extension");
- scripting_context = malloc(sizeof(struct scripting_context));
+ if (scripting_context == NULL)
+ scripting_context = malloc(sizeof(*scripting_context));
}
#ifdef NO_LIBPYTHON
@@ -153,7 +154,8 @@ static void register_perl_scripting(struct scripting_ops *scripting_ops)
if (err)
die("error registering pl script extension");
- scripting_context = malloc(sizeof(struct scripting_context));
+ if (scripting_context == NULL)
+ scripting_context = malloc(sizeof(*scripting_context));
}
#ifdef NO_LIBPERL