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ftrace: fix setting of pos in read_pipe

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In resetting the iterator in read_pipe, the reset of pos was
postitioned in the wrong location with respect to the memset
operation. The current code sets pos, incorrectly, to zero.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Steven Rostedt 2008-05-12 21:21:01 +02:00 committed by Thomas Gleixner
parent 2f1dafe50c
commit 4823ed7ead
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/trace.c
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@ -2455,10 +2455,10 @@ tracing_read_pipe(struct file *filp, char __user *ubuf,
cnt = PAGE_SIZE - 1; cnt = PAGE_SIZE - 1;
/* reset all but tr, trace, and overruns */ /* reset all but tr, trace, and overruns */
iter->pos = -1;
memset(&iter->seq, 0, memset(&iter->seq, 0,
sizeof(struct trace_iterator) - sizeof(struct trace_iterator) -
offsetof(struct trace_iterator, seq)); offsetof(struct trace_iterator, seq));
iter->pos = -1;
/* /*
* We need to stop all tracing on all CPUS to read the * We need to stop all tracing on all CPUS to read the