event/octeontx2: fix null dereference

[dpdk.git] / drivers / event / octeontx2 / otx2_evdev_adptr.c

diff --git a/drivers/event/octeontx2/otx2_evdev_adptr.c b/drivers/event/octeontx2/otx2_evdev_adptr.c
index 0c4f18e..b6e9f59 100644 (file)
--- a/drivers/event/octeontx2/otx2_evdev_adptr.c
+++ b/drivers/event/octeontx2/otx2_evdev_adptr.c
@@ -203,6 +203,7 @@ sso_updt_xae_cnt(struct otx2_sso_evdev *dev, void *data, uint32_t event_type)
        {
                struct otx2_eth_rxq *rxq = data;
                int i, match = false;
+               uint64_t *old_ptr;
 
                for (i = 0; i < dev->rx_adptr_pool_cnt; i++) {
                        if ((uint64_t)rxq->pool == dev->rx_adptr_pools[i])
@@ -211,10 +212,17 @@ sso_updt_xae_cnt(struct otx2_sso_evdev *dev, void *data, uint32_t event_type)
 
                if (!match) {
                        dev->rx_adptr_pool_cnt++;
+                       old_ptr = dev->rx_adptr_pools;
                        dev->rx_adptr_pools = rte_realloc(dev->rx_adptr_pools,
                                                          sizeof(uint64_t) *
                                                          dev->rx_adptr_pool_cnt
                                                          , 0);
+                       if (dev->rx_adptr_pools == NULL) {
+                               dev->adptr_xae_cnt += rxq->pool->size;
+                               dev->rx_adptr_pools = old_ptr;
+                               dev->rx_adptr_pool_cnt--;
+                               return;
+                       }
                        dev->rx_adptr_pools[dev->rx_adptr_pool_cnt - 1] =
                                (uint64_t)rxq->pool;