diff options
| -rw-r--r-- | include/net/dst.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/dst.h b/include/net/dst.h index 07a0402c52e6..7d15d238b6ec 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -111,6 +111,8 @@ static inline u32 *dst_metrics_write_ptr(struct dst_entry *dst) { unsigned long p = dst->_metrics; + BUG_ON(!p); + if (p & DST_METRICS_READ_ONLY) return dst->ops->cow_metrics(dst, p); return __DST_METRICS_PTR(p); |