qtnfmac: fix resource leaks on unsupported iftype error return path

Currently if an unsupported iftype is detected the error return path
does not free the cmd_skb leading to a resource leak. Fix this by
free'ing cmd_skb.

Addresses-Coverity: ("Resource leak")
Fixes: 805b28c05c8e ("qtnfmac: prepare for AP_VLAN interface type support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200925132224.21638-1-colin.king@canonical.com

diff --git a/drivers/net/wireless/quantenna/qtnfmac/commands.c b/drivers/net/wireless/quantenna/qtnfmac/commands.c
index f40d8c3..f3ccbd2 100644 (file)
--- a/drivers/net/wireless/quantenna/qtnfmac/commands.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/commands.c
@@ -869,6 +869,7 @@ int qtnf_cmd_send_del_intf(struct qtnf_vif *vif)
        default:
                pr_warn("VIF%u.%u: unsupported iftype %d\n", vif->mac->macid,
                        vif->vifid, vif->wdev.iftype);
+               dev_kfree_skb(cmd_skb);
                ret = -EINVAL;
                goto out;
        }
@@ -1924,6 +1925,7 @@ int qtnf_cmd_send_change_sta(struct qtnf_vif *vif, const u8 *mac,
                break;
        default:
                pr_err("unsupported iftype %d\n", vif->wdev.iftype);
+               dev_kfree_skb(cmd_skb);
                ret = -EINVAL;
                goto out;
        }