[BUGFIX PATCH] tracing/kprobes: Fix strpbrk() argument order

[Masami Hiramatsu]

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.

Fixes: a6682814f371 ("tracing/kprobes: Allow kprobe-events to record module 
symbol")
Signed-off-by: Masami Hiramatsu <mhira...@kernel.org>
---
 kernel/trace/trace_probe.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 3ef15a6683c0..bd30e9398d2a 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -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,