diff options
Diffstat (limited to 'kernel/trace/trace_kprobe.c')
| -rw-r--r-- | kernel/trace/trace_kprobe.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index d8d5f18a141a..2703b96d8990 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -124,9 +124,8 @@ static nokprobe_inline bool trace_kprobe_module_exist(struct trace_kprobe *tk) if (!p) return true; *p = '\0'; - rcu_read_lock_sched(); - ret = !!find_module(tk->symbol); - rcu_read_unlock_sched(); + scoped_guard(rcu) + ret = !!find_module(tk->symbol); *p = ':'; return ret; @@ -796,12 +795,10 @@ static struct module *try_module_get_by_name(const char *name) { struct module *mod; - rcu_read_lock_sched(); + guard(rcu)(); mod = find_module(name); if (mod && !try_module_get(mod)) mod = NULL; - rcu_read_unlock_sched(); - return mod; } #else @@ -1007,8 +1004,11 @@ static int trace_kprobe_create_internal(int argc, const char *argv[], argc = new_argc; argv = new_argv; } - if (argc > MAX_TRACE_ARGS) + if (argc > MAX_TRACE_ARGS) { + trace_probe_log_set_index(2); + trace_probe_log_err(0, TOO_MANY_ARGS); return -E2BIG; + } ret = traceprobe_expand_dentry_args(argc, argv, &dbuf); if (ret) |