Commit 2fc1dfbe authored Mar 16, 2009 by Frederic Weisbecker Committed by Ingo Molnar Mar 16, 2009

tracing/core: fix early free of cpumasks



Impact: fix crashes when tracing cpumasks

While ring-buffer allocation, the cpumasks are allocated too,
including the tracing cpumask and the per-cpu file mask handler.
But these cpumasks are freed accidentally just after.
Fix it.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1237164303-11476-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent ac1d52d0

kernel/trace/trace.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -4125,7 +4125,8 @@ __init static int tracer_alloc_buffers(void)
		&trace_panic_notifier);

		register_die_notifier(&trace_die_notifier);
		ret = 0;

		return 0;

		out_free_cpumask:
		free_cpumask_var(tracing_reader_cpumask);

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