net/enic: fix dereference before null check

[ upstream commit a5f4298 ]

Move memcpy to 'ah->key' after 'ah' null check

Fixes: bb66d56 ("net/enic: share flow actions with same signature")

Signed-off-by: Weiguo Li <liwg06@foxmail.com>
Reviewed-by: John Daley <johndale@cisco.com>

drivers/net/enic/enic_fm_flow.c

@@ -2372,11 +2372,11 @@ enic_action_handle_get(struct enic_flowman *fm, struct fm_action *action_in,
 		memcpy(fma, action_in, sizeof(*fma));
 
 		ah = calloc(1, sizeof(*ah));
-		memcpy(&ah->key, action_in, sizeof(struct fm_action));
 		if (ah == NULL)
 			return rte_flow_error_set(error, ENOMEM,
 					   RTE_FLOW_ERROR_TYPE_HANDLE,
 					   NULL, "enic: calloc(fm-action)");
+		memcpy(&ah->key, action_in, sizeof(struct fm_action));
 		args[0] = FM_ACTION_ALLOC;
 		args[1] = fm->cmd.pa;
 		ret = flowman_cmd(fm, args, 2);