linux-kernel - [PATCH 1/5] plugin:python: fix compiler warning

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Date:   Sun, 23 Apr 2017 12:22:54 +0200
From:   Federico Vaga <federico.vaga@...a.pv.it>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Federico Vaga <federico.vaga@...a.pv.it>
Subject: [PATCH 1/5] plugin:python: fix compiler warning

The function `load_plugin` is passed, as argument, to
`trace_util_load_plugins()` but the prototype was not exactly the same.

Signed-off-by: Federico Vaga <federico.vaga@...a.pv.it>
---
 plugin_python.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/plugin_python.c b/plugin_python.c
index da07d27..d3da8b0 100644
--- a/plugin_python.c
+++ b/plugin_python.c
@@ -20,7 +20,7 @@ static const char pyload[] =
 "finally:\n"
 "   file.close()\n";
 
-static void load_plugin(struct pevent *pevent, const char *path,
+static int load_plugin(struct pevent *pevent, const char *path,
 			const char *name, void *data)
 {
 	PyObject *globals = data;
@@ -32,7 +32,7 @@ static void load_plugin(struct pevent *pevent, const char *path,
 	PyObject *res;
 
 	if (!full || !n)
-		return;
+		return -ENOMEM;
 
 	strcpy(full, path);
 	strcat(full, "/");
@@ -43,7 +43,7 @@ static void load_plugin(struct pevent *pevent, const char *path,
 
 	asprintf(&load, pyload, full, n);
 	if (!load)
-		return;
+		return -ENOMEM;
 
 	res = PyRun_String(load, Py_file_input, globals, globals);
 	if (!res) {
@@ -53,6 +53,8 @@ static void load_plugin(struct pevent *pevent, const char *path,
 		Py_DECREF(res);
 
 	free(load);
+
+	return 0;
 }
 
 int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
-- 
2.9.3