[PATCH] qlcnic: fix a memory leak in __qlcnic_pci_sriov_enable()

[Haoxiang Li]

Add qlcnic_sriov_free_vlans() to free the memory allocated by
qlcnic_sriov_alloc_vlans() if qlcnic_sriov_alloc_vlans() fails.

Fixes: 60ec7fcfe768 ("qlcnic: potential dereference null pointer of rx_queue->page_ring")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Haoxiang Li <haoxiang_li2024@xxxxxxx>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
index 8dd7aa08ecfb..b8a9e0e2907e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c
@@ -598,8 +598,10 @@ static int __qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter,
 		goto del_flr_queue;
 
 	err = qlcnic_sriov_alloc_vlans(adapter);
-	if (err)
+	if (err) {
+		qlcnic_sriov_free_vlans(adapter);
 		goto del_flr_queue;
+	}
 
 	return err;
 
-- 
2.25.1