return ap;
}
-/* Return error if the kprobe is being re-registered */
-static inline int check_kprobe_rereg(struct kprobe *p)
+/*
+ * Warn and return error if the kprobe is being re-registered since
+ * there must be a software bug.
+ */
+static inline int warn_kprobe_rereg(struct kprobe *p)
{
int ret = 0;
mutex_lock(&kprobe_mutex);
- if (__get_valid_kprobe(p))
+ if (WARN_ON_ONCE(__get_valid_kprobe(p)))
ret = -EINVAL;
mutex_unlock(&kprobe_mutex);
return PTR_ERR(addr);
p->addr = addr;
- ret = check_kprobe_rereg(p);
+ ret = warn_kprobe_rereg(p);
if (ret)
return ret;
return ret;
/* If only rp->kp.addr is specified, check reregistering kprobes */
- if (rp->kp.addr && check_kprobe_rereg(&rp->kp))
+ if (rp->kp.addr && warn_kprobe_rereg(&rp->kp))
return -EINVAL;
if (kretprobe_blacklist_size) {