[PATCH] wifi: mt76: mt7921: fix uninitialized variable warning

[Hongling Zeng]

Move the initialization of 'dev' before the error path that uses it.
This fixes the compiler warning:
  drivers/net/wireless/mediatek/mt76/mt7921/pci.c:347:6: warning:
  variable 'dev' is used uninitialized whenever 'if' condition is true

Fixes: 0d56655a74ef ("wifi: mt76: mt7921: fix resource leak in probe error path")
Reported-by: kernel test robot <lkp at intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202605130432.S8Ozipm2-lkp@intel.com/
Signed-off-by: Hongling Zeng <zenghongling at kylinos.cn>
---
 drivers/net/wireless/mediatek/mt76/mt7921/pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
index 4bb436465a3d..49a37185f056 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/pci.c
@@ -343,13 +343,14 @@ static int mt7921_pci_probe(struct pci_dev *pdev,
 
 	pci_set_drvdata(pdev, mdev);
 
+	dev = container_of(mdev, struct mt792x_dev, mt76);
+
 	regs =  pcim_iomap_region(pdev, 0, pci_name(pdev));
 	if (IS_ERR(regs)) {
 		ret = PTR_ERR(regs);
 		goto err_free_dev;
 	}
 
-	dev = container_of(mdev, struct mt792x_dev, mt76);
 	dev->fw_features = features;
 	dev->hif_ops = &mt7921_pcie_ops;
 	dev->irq_map = &irq_map;
-- 
2.25.1