diff options
| author | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2025-03-27 21:19:54 +0900 |
|---|---|---|
| committer | Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2025-03-27 21:19:54 +0900 |
| commit | 57faaa04804ccbf16582f7fc7a6b986fd0c0e78c (patch) | |
| tree | e1e9b170f3d24c35a097a4602f817d262df8158a /kernel/trace/trace_uprobe.c | |
| parent | 38fec10eb60d687e30c8c6b5420d86e8149f7557 (diff) | |
tracing: probe-events: Log error for exceeding the number of arguments
Add error message when the number of arguments exceeds the limitation.
Link: https://lore.kernel.org/all/174055075075.4079315.10916648136898316476.stgit@mhiramat.tok.corp.google.com/
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_uprobe.c')
| -rw-r--r-- | kernel/trace/trace_uprobe.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c index ccc762fbb69cd..3386439ec9f67 100644 --- a/kernel/trace/trace_uprobe.c +++ b/kernel/trace/trace_uprobe.c @@ -562,8 +562,14 @@ static int __trace_uprobe_create(int argc, const char **argv) if (argc < 2) return -ECANCELED; - if (argc - 2 > MAX_TRACE_ARGS) + + trace_probe_log_init("trace_uprobe", argc, argv); + + if (argc - 2 > MAX_TRACE_ARGS) { + trace_probe_log_set_index(2); + trace_probe_log_err(0, TOO_MANY_ARGS); return -E2BIG; + } if (argv[0][1] == ':') event = &argv[0][2]; @@ -582,7 +588,6 @@ static int __trace_uprobe_create(int argc, const char **argv) return -ECANCELED; } - trace_probe_log_init("trace_uprobe", argc, argv); trace_probe_log_set_index(1); /* filename is the 2nd argument */ *arg++ = '\0'; |