tracing/ftrace: fix pipe breaking
This patch fixes a bug which break the pipe when the seq is empty. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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This patch fixes a bug which break the pipe when the seq is empty. Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>