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tracing/kprobes: Fix strpbrk() argument order

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Fix strpbrk()'s argument order, it must pass acceptable string
in 2nd argument. Note that this can cause a kernel panic where
it recovers backup character to code->data.

Link: http://lkml.kernel.org/r/154108256792.2604.1816052586385217811.stgit@devbox

Fixes: a6682814f3 ("tracing/kprobes: Allow kprobe-events to record module symbol")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Masami Hiramatsu 2018-11-01 23:29:28 +09:00 committed by Steven Rostedt (VMware)
parent 651022382c
commit ee474b81fe
1 changed files with 1 additions and 1 deletions
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2
kernel/trace/trace_probe.c
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@ -535,7 +535,7 @@ int traceprobe_update_arg(struct probe_arg *arg)
if (code[1].op != FETCH_OP_IMM)
return -EINVAL;
tmp = strpbrk("+-", code->data);
tmp = strpbrk(code->data, "+-");
if (tmp)
c = *tmp;
ret = traceprobe_split_symbol_offset(code->data,