diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 3aa22dc..7273e9f 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -592,6 +592,9 @@
 	ath5k_led_off(sc);
 
 	ath5k_stop_hw(sc);
+
+	free_irq(pdev->irq, sc);
+	pci_disable_msi(pdev);
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	pci_set_power_state(pdev, PCI_D3hot);
@@ -607,15 +610,12 @@
 	struct ath5k_hw *ah = sc->ah;
 	int i, err;
 
-	err = pci_set_power_state(pdev, PCI_D0);
-	if (err)
-		return err;
+	pci_restore_state(pdev);
 
 	err = pci_enable_device(pdev);
 	if (err)
 		return err;
 
-	pci_restore_state(pdev);
 	/*
 	 * Suspend/Resume resets the PCI configuration space, so we have to
 	 * re-disable the RETRY_TIMEOUT register (0x41) to keep
@@ -623,7 +623,17 @@
 	 */
 	pci_write_config_byte(pdev, 0x41, 0);
 
-	ath5k_init(sc);
+	pci_enable_msi(pdev);
+
+	err = request_irq(pdev->irq, ath5k_intr, IRQF_SHARED, "ath", sc);
+	if (err) {
+		ATH5K_ERR(sc, "request_irq failed\n");
+		goto err_msi;
+	}
+
+	err = ath5k_init(sc);
+	if (err)
+		goto err_irq;
 	ath5k_led_enable(sc);
 
 	/*
@@ -637,6 +647,12 @@
 		ath5k_hw_reset_key(ah, i);
 
 	return 0;
+err_irq:
+	free_irq(pdev->irq, sc);
+err_msi:
+	pci_disable_msi(pdev);
+	pci_disable_device(pdev);
+	return err;
 }
 #endif /* CONFIG_PM */