--- a/ath/if_ath_ahb.c
+++ b/ath/if_ath_ahb.c
@@ -311,6 +311,11 @@ init_ath_wmac(u_int16_t devid, u_int16_t
 	SET_MODULE_OWNER(dev);
 	sclist[wlanNum] = sc;
 
+	if (dev_alloc_name(dev, dev->name) < 0) {
+		printk(KERN_ERR "%s: cannot allocate name\n", dev_info);
+		goto bad3;
+	}
+
 	switch (wlanNum) {
 	case AR531X_WLAN0_NUM:
 		if (((devid & AR5315_REV_MAJ_M) == AR5315_REV_MAJ) ||
--- a/ath/if_ath_pci.c
+++ b/ath/if_ath_pci.c
@@ -236,6 +236,11 @@ ath_pci_probe(struct pci_dev *pdev, cons
 	 */
 	sc->aps_sc.sc_invalid = 1;
 
+	if (dev_alloc_name(dev, dev->name) < 0) {
+		printk(KERN_ERR "%s: cannot allocate name\n", dev_info);
+		goto bad3;
+	}
+
 	dev->irq = pdev->irq;
 
 	SET_MODULE_OWNER(dev);