[PATCH 4.14 048/161] mwifiex: pcie: Fix memory leak in mwifiex_pcie_init_evt_ring
From: Greg Kroah-Hartman
Date: Sun Dec 29 2019 - 13:17:44 EST
From: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
[ Upstream commit d10dcb615c8e29d403a24d35f8310a7a53e3050c ]
In mwifiex_pcie_init_evt_ring, a new skb is allocated which should be
released if mwifiex_map_pci_memory() fails. The release for skb and
card->evtbd_ring_vbase is added.
Fixes: 0732484b47b5 ("mwifiex: separate ring initialization and ring creation routines")
Signed-off-by: Navid Emamdoost <navid.emamdoost@xxxxxxxxx>
Acked-by: Ganapathi Bhat <gbhat@xxxxxxxxxxx>
Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/wireless/marvell/mwifiex/pcie.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
index 9511f5fe62f4..9d0d790a1319 100644
--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
+++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
@@ -677,8 +677,11 @@ static int mwifiex_pcie_init_evt_ring(struct mwifiex_adapter *adapter)
skb_put(skb, MAX_EVENT_SIZE);
if (mwifiex_map_pci_memory(adapter, skb, MAX_EVENT_SIZE,
- PCI_DMA_FROMDEVICE))
+ PCI_DMA_FROMDEVICE)) {
+ kfree_skb(skb);
+ kfree(card->evtbd_ring_vbase);
return -1;
+ }
buf_pa = MWIFIEX_SKB_DMA_ADDR(skb);
--
2.20.1