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Date: Tue, 08 Dec 2009 11:15:30 +0800 From: Li Zefan <lizf@...fujitsu.com> To: Ingo Molnar <mingo@...e.hu> CC: Steven Rostedt <rostedt@...dmis.org>, Frederic Weisbecker <fweisbec@...il.com>, LKML <linux-kernel@...r.kernel.org> Subject: [PATCH 05/13] ftrace: Call trace_parser_clear() properly I found a weird behavior: # echo 'fuse:*' > set_ftrace_filter bash: echo: write error: Invalid argument # cat set_ftrace_filter fuse_dev_fasync fuse_dev_poll fuse_copy_do We should call trace_parser_clear() no matter ftrace_process_regex() returns 0 or -errno. Signed-off-by: Li Zefan <lizf@...fujitsu.com> --- kernel/trace/ftrace.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 08a3fb5..ff8aecd 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2208,10 +2208,9 @@ ftrace_regex_write(struct file *file, const char __user *ubuf, !trace_parser_cont(parser)) { ret = ftrace_process_regex(parser->buffer, parser->idx, enable); + trace_parser_clear(parser); if (ret) goto out_unlock; - - trace_parser_clear(parser); } ret = read; -- 1.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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