ath9k: propagate errors on ath_init_device() and request_irq()

We've cleaned up ath_init_device() and its children enough
to pass meaninful errors back from probe. When this fails
it means our device could not be initialized and a meaninful
error will have been passed.

Do the same for request_irq() and also synchronize the error
messages while at it.
Signed-off-by: NLuis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ahb.c

@@ -120,16 +120,14 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	sc->irq = irq;
 
 	ret = ath_init_device(AR5416_AR9100_DEVID, sc);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "failed to attach device, err=%d\n", ret);
-		ret = -ENODEV;
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize device\n");
 		goto err_free_hw;
 	}
 
 	ret = request_irq(irq, ath_isr, IRQF_SHARED, "ath9k", sc);
 	if (ret) {
-		dev_err(&pdev->dev, "request_irq failed, err=%d\n", ret);
-		ret = -EIO;
+		dev_err(&pdev->dev, "request_irq failed\n");
 		goto err_detach;
 	}
 

drivers/net/wireless/ath/ath9k/pci.c

@@ -179,17 +179,17 @@ static int ath_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	sc->mem = mem;
 	sc->bus_ops = &ath_pci_bus_ops;
 
-	if (ath_init_device(id->device, sc) != 0) {
-		ret = -ENODEV;
+	ret = ath_init_device(id->device, sc);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize device\n");
 		goto bad3;
 	}
 
 	/* setup interrupt service routine */
 
-	if (request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc)) {
-		printk(KERN_ERR "%s: request_irq failed\n",
-			wiphy_name(hw->wiphy));
-		ret = -EIO;
+	ret = request_irq(pdev->irq, ath_isr, IRQF_SHARED, "ath", sc);
+	if (ret) {
+		dev_err(&pdev->dev, "request_irq failed\n");
 		goto bad4;
 	}