[PATCH 5.17 368/772] mt76: mt7921: Fix the error handling path of mt7921_pci_probe()

Greg Kroah-Hartman
2022-06-07T21:07:53Z

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 4e90db5e21eb3bb272fe47386dc3506755e209e9 ]

In case of error, some resources must be freed, as already done above and
below the devm_kmemdup() and __mt7921e_mcu_drv_pmctrl() calls added in the
commit in Fixes:.

Fixes: 602cc0c9618a ("mt76: mt7921e: fix possible probe failure after reboot")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index 9a71a5d86481..18c8f5cbd96c 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -300,8 +300,10 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
dev->bus_ops = dev->mt76.bus;
bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
GFP_KERNEL);
- if (!bus_ops)
- return -ENOMEM;
+ if (!bus_ops) {
+ ret = -ENOMEM;
+ goto err_free_dev;
+ }

bus_ops->rr = mt7921_rr;
bus_ops->wr = mt7921_wr;
@@ -310,7 +312,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev,

ret = __mt7921e_mcu_drv_pmctrl(dev);
if (ret)
- return ret;
+ goto err_free_dev;

mdev->rev = (mt7921_l1_rr(dev, MT_HW_CHIPID) << 16) |
(mt7921_l1_rr(dev, MT_HW_REV) & 0xff);
--
2.35.1