Commit 9fbc01cd authored by Kefeng Wang's avatar Kefeng Wang Committed by Steven Rostedt (VMware)
Browse files

sample-trace-array: Remove trace_array 'sample-instance' 

Remove trace_array 'sample-instance' if kthread_run fails
in sample_trace_array_init().

Link: https://lkml.kernel.org/r/20200609135200.2206726-1-wangkefeng.wang@huawei.com



Cc: stable@vger.kernel.org
Fixes: 89ed4249 ("tracing: Sample module to demonstrate kernel access to Ftrace instances.")
Reviewed-by: default avatarDivya Indi <divya.indi@oracle.com>
Signed-off-by: default avatarKefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent e9b7b1c0

samples/ftrace/sample-trace-array.c

+5 −1
Original line number Diff line number Diff line
@@ -115,8 +115,12 @@ static int __init sample_trace_array_init(void) 
	trace_printk_init_buffers();



	simple_tsk = kthread_run(simple_thread, NULL, "sample-instance");

	if (IS_ERR(simple_tsk))

	if (IS_ERR(simple_tsk)) {

		trace_array_put(tr);

		trace_array_destroy(tr);

		return -1;

	}



	return 0;

}