[dpdk-dev] [PATCH v3] mbuf: fix freeing of NULL mbuf when debug enabled
Olivier Matz
olivier.matz at 6wind.com
Mon Jan 29 10:39:23 CET 2018
Do not panic when calling rte_pktmbuf_free(NULL) with mbuf debug
enabled, it is a valid operation.
Fixes: af75078fece3 ("first public release")
Cc: stable at dpdk.org
Reported-by: Keith Wiles <keith.wiles at intel.com>
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
lib/librte_mbuf/rte_mbuf.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 4519fb303..719d04dda 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -1439,13 +1439,14 @@ rte_pktmbuf_free_seg(struct rte_mbuf *m)
* segment is added back into its original mempool.
*
* @param m
- * The packet mbuf to be freed.
+ * The packet mbuf to be freed. If NULL, the function does nothing.
*/
static inline void rte_pktmbuf_free(struct rte_mbuf *m)
{
struct rte_mbuf *m_next;
- __rte_mbuf_sanity_check(m, 1);
+ if (m != NULL)
+ __rte_mbuf_sanity_check(m, 1);
while (m != NULL) {
m_next = m->next;
--
2.11.0
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