ath9k: wake up chip before initializing PAPRD table

In PAPRD table initialization path we do some register read, so
make sure the chip is awake during that. Currently PAPRD is disabled.

Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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

@@ -392,12 +392,14 @@ void ath_paprd_calibrate(struct work_struct *work)
 	if (!caldata)
 		return;
 
+	ath9k_ps_wakeup(sc);
+
 	if (ar9003_paprd_init_table(ah) < 0)
-		return;
+		goto fail_paprd;
 
 	skb = alloc_skb(len, GFP_KERNEL);
 	if (!skb)
-		return;
+		goto fail_paprd;
 
 	skb_put(skb, len);
 	memset(skb->data, 0, len);
@@ -409,7 +411,6 @@ void ath_paprd_calibrate(struct work_struct *work)
 	memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN);
 	memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
 
-	ath9k_ps_wakeup(sc);
 	for (chain = 0; chain < AR9300_MAX_CHAINS; chain++) {
 		if (!(common->tx_chainmask & BIT(chain)))
 			continue;