Revert "mt76: mt7921: Fix the error handling path of mt7921_pci_probe()"
authorSean Wang <sean.wang@mediatek.com>
Fri, 15 Jul 2022 19:59:22 +0000 (12:59 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:07 +0000 (17:25 +0200)
This reverts commit 663457f421d41e9d2fcb1e84baf43d1433f80c08 that is the
commit 44c4237cf3436bda2b185ff728123651ad133f69 upstream.

Because there was mistake in
'649178c0493e ("mt76: mt7921e: fix possible probe failure after reboot")'
that caused WiFi reset cannot work well as the reported issue
"PROBLEM: [Stable v5.15.42+] [mt7921] Wake after suspend locks up system
when mt7921-driver is used on a Lenovo ThinkPad E15 G3" described in
http://lists.infradead.org/pipermail/linux-mediatek/2022-June/042668.html
So we need to revert the patch first to avoid the conflict of reverting
'649178c0493e ("mt76: mt7921e: fix possible probe failure after reboot")'
and will be applied back later after fixing.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/wireless/mediatek/mt76/mt7921/pci.c

index 3d35838ef306946c33b1ef593ec1f7e4636237a5..7d9b23a00238816fce6ae35128b42d4552978426 100644 (file)
@@ -254,10 +254,8 @@ 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) {
-               ret = -ENOMEM;
-               goto err_free_dev;
-       }
+       if (!bus_ops)
+               return -ENOMEM;
 
        bus_ops->rr = mt7921_rr;
        bus_ops->wr = mt7921_wr;
@@ -266,7 +264,7 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
 
        ret = __mt7921_mcu_drv_pmctrl(dev);
        if (ret)
-               goto err_free_dev;
+               return ret;
 
        mdev->rev = (mt7921_l1_rr(dev, MT_HW_CHIPID) << 16) |
                    (mt7921_l1_rr(dev, MT_HW_REV) & 0xff);