Commit a9fcaaac authored Jun 06, 2014 by Steven Rostedt (Red Hat) Committed by Steven Rostedt Jun 06, 2014

tracing: Fix memory leak on instance deletion



When an instance is created, it also gets a snapshot ring buffer
allocated (with minimum of pages). But when it is deleted the snapshot
buffer is not. There was a helper function added to match the allocation
of these ring buffers to a way to free them, but it wasn't used by
the deletion of an instance. Using that helper function solves this
memory leak.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

parent 23aaa3c1

kernel/trace/trace.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -6349,8 +6349,7 @@ static int instance_delete(const char *name)
		event_trace_del_tracer(tr);
		ftrace_destroy_function_files(tr);
		debugfs_remove_recursive(tr->dir);
		free_percpu(tr->trace_buffer.data);
		ring_buffer_free(tr->trace_buffer.buffer);
		free_trace_buffers(tr);

		kfree(tr->name);
		kfree(tr);

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