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author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-10-25 17:20:47 -0300 |
---|---|---|
committer | Ben Hutchings <ben@decadent.org.uk> | 2017-03-16 02:26:17 +0000 |
commit | 3dab7d4f5119373f0092fc33d9c7bf599c39eb32 (patch) | |
tree | 03f132228d99b66744bdfb8d99a133aef8651b53 | |
parent | 5c04a2622839a8a2246d9b74ced2e6a18d53c7c5 (diff) | |
download | linux-stable-3dab7d4f5119373f0092fc33d9c7bf599c39eb32.tar.gz linux-stable-3dab7d4f5119373f0092fc33d9c7bf599c39eb32.tar.bz2 linux-stable-3dab7d4f5119373f0092fc33d9c7bf599c39eb32.zip |
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>
-rw-r--r-- | tools/perf/util/trace-event-scripting.c | 6 |
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 |