This is a note to let you know that I've just added the patch titled
mt76: mt7921: Fix the error handling path of mt7921_pci_probe()
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mt76-mt7921-fix-the-error-handling-path-of-mt7921_pc.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit fd9519fdeb6173644ce57d219c662652e7c7ae9e
Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
Date: Sun Apr 3 17:40:33 2022 +0200
mt76: mt7921: Fix the error handling path of mt7921_pci_probe()
[ 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@xxxxxxxxxx>
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index 7d9b23a00238..3d35838ef306 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -254,8 +254,10 @@ 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;
@@ -264,7 +266,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
ret = __mt7921_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);
