net: qca_spi: Fix possible race during probe

commit 268be0f7 upstream.

Registering the netdev before setting the priv data is unsafe.
So fix this possible race by setting the priv data first.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Fixes: 291ab06e (net: qualcomm: new Ethernet over SPI driver for QCA7000)
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

drivers/net/ethernet/qualcomm/qca_spi.c

@@ -913,6 +913,8 @@ qca_spi_probe(struct spi_device *spi_device)
 	qca->spi_dev = spi_device;
 	qca->legacy_mode = legacy_mode;
 
+	spi_set_drvdata(spi_device, qcaspi_devs);
+
 	mac = of_get_mac_address(spi_device->dev.of_node);
 
 	if (mac)
@@ -945,8 +947,6 @@ qca_spi_probe(struct spi_device *spi_device)
 		return -EFAULT;
 	}
 
-	spi_set_drvdata(spi_device, qcaspi_devs);
-
 	qcaspi_init_device_debugfs(qca);
 
 	return 0;