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trace_kprobes: Fix memory leak 

tp->nr_args is not set before we "goto error",
it causes memory leak for free_trace_probe() use tp->nr_args
to free memory of args.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0CEB95.2060107@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Lai Jiangshan 2009-11-25 16:32:21 +08:00 committed by Ingo Molnar
parent 0f1ef51d24
commit abab9d37d2
1 changed files with 3 additions and 1 deletions
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4
kernel/trace/trace_kprobe.c
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@ -704,10 +704,12 @@ static int create_trace_probe(int argc, char **argv)
ret = parse_probe_arg(arg, &tp->args[i].fetch, is_return);
if (ret) {
pr_info("Parse error at argument%d. (%d)\n", i, ret);
kfree(tp->args[i].name);
goto error;
}
tp->nr_args++;
}
tp->nr_args = i;
ret = register_trace_probe(tp);
if (ret)