From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.
===============
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@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Tom Zanussi <tzanussi@xxxxxxxxx>
Cc: Wang Nan <wangnan0@xxxxxxxxxx>
Fixes: 7e4b21b84c43 ("perf/scripts: Add Python scripting engine")
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
tools/perf/util/trace-event-scripting.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/tools/perf/util/trace-event-scripting.c b/tools/perf/util/trace-event-scripting.c
index 95199e4eea97..f928bfc4852f 100644
--- a/tools/perf/util/trace-event-scripting.c
+++ b/tools/perf/util/trace-event-scripting.c
@@ -91,7 +91,8 @@ 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
@@ -154,7 +155,8 @@ 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
--
2.11.0
--
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