app/testpmd: fix memory failure handling for i40e DDP

In cmd_ddp_get_list_parsed(), elements of "p_list" are accessed
even after the memory allocation for "p_list" fails.

With this patch, this null pointer dereference is avoided as we
return when there is malloc failure.

Fixes: e088907bb851 ("app/testpmd: add command for getting loaded DDP profiles")
Cc: stable@dpdk.org
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Acked-by: Bernard Iremonger <bernard.iremonger@intel.com>

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index b040630..996a498 100644 (file)
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -16891,8 +16891,10 @@ cmd_ddp_get_list_parsed(
 #ifdef RTE_LIBRTE_I40E_PMD
        size = PROFILE_INFO_SIZE * MAX_PROFILE_NUM + 4;
        p_list = (struct rte_pmd_i40e_profile_list *)malloc(size);
-       if (!p_list)
+       if (!p_list) {
                printf("%s: Failed to malloc buffer\n", __func__);
+               return;
+       }
 
        if (ret == -ENOTSUP)
                ret = rte_pmd_i40e_get_ddp_list(res->port_id,