linux-kernel - [PATCH 5.0 046/146] tracing: initialize variable in create_dyn

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Date:   Mon,  1 Apr 2019 19:00:58 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Tom Zanussi <tom.zanussi@...ux.intel.com>,
        Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>,
        Frank Rowand <frank.rowand@...y.com>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>
Subject: [PATCH 5.0 046/146] tracing: initialize variable in create_dyn_event()

5.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Frank Rowand <frank.rowand@...y.com>

commit 3dee10da2e9ff220e054a8f158cc296c797fbe81 upstream.

Fix compile warning in create_dyn_event(): 'ret' may be used uninitialized
in this function [-Wuninitialized].

Link: http://lkml.kernel.org/r/1553237900-8555-1-git-send-email-frowand.list@gmail.com

Cc: Masami Hiramatsu <mhiramat@...nel.org>
Cc: Ingo Molnar <mingo@...nel.org>
Cc: Tom Zanussi <tom.zanussi@...ux.intel.com>
Cc: Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Cc: stable@...r.kernel.org
Fixes: 5448d44c3855 ("tracing: Add unified dynamic event framework")
Signed-off-by: Frank Rowand <frank.rowand@...y.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@...dmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 kernel/trace/trace_dynevent.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/kernel/trace/trace_dynevent.c
+++ b/kernel/trace/trace_dynevent.c
@@ -74,7 +74,7 @@ int dyn_event_release(int argc, char **a
 static int create_dyn_event(int argc, char **argv)
 {
 	struct dyn_event_operations *ops;
-	int ret;
+	int ret = -ENODEV;
 
 	if (argv[0][0] == '-' || argv[0][0] == '!')
 		return dyn_event_release(argc, argv, NULL);