1 files changed, 8 insertions, 6 deletions

diff --git a/drivers/net/wan/ixp4xx_hss.c b/drivers/net/wan/ixp4xx_hss.c
index 3bf7d3f447db..1e56e58c6605 100644
--- a/drivers/net/wan/ixp4xx_hss.c
+++ b/drivers/net/wan/ixp4xx_hss.c
@@ -579,7 +579,8 @@ static inline void queue_put_desc(unsigned int queue, u32 phys,
         debug_desc(phys, desc);
         BUG_ON(phys & 0x1F);
         qmgr_put_entry(queue, phys);
-        BUG_ON(qmgr_stat_overflow(queue));
+        /* Don't check for queue overflow here, we've allocated sufficient
+           length and queues >= 32 don't support this check anyway. */
 }
 
 
@@ -789,7 +790,8 @@ static void hss_hdlc_txdone_irq(void *pdev)
                 free_buffer_irq(port->tx_buff_tab[n_desc]);
                 port->tx_buff_tab[n_desc] = NULL;
 
-                start = qmgr_stat_empty(port->plat->txreadyq);
+                /* really empty in fact */
+                start = qmgr_stat_nearly_empty(port->plat->txreadyq);
                 queue_put_desc(port->plat->txreadyq,
                                tx_desc_phys(port, n_desc), desc);
                 if (start) {
@@ -867,13 +869,13 @@ static int hss_hdlc_xmit(struct sk_buff *skb, struct net_device *dev)
         queue_put_desc(queue_ids[port->id].tx, tx_desc_phys(port, n), desc);
         dev->trans_start = jiffies;
 
-        if (qmgr_stat_empty(txreadyq)) {
+        if (qmgr_stat_nearly_empty(txreadyq)) { /* really empty in fact */
 #if DEBUG_TX
                 printk(KERN_DEBUG "%s: hss_hdlc_xmit queue full\n", dev->name);
 #endif
                 netif_stop_queue(dev);
                 /* we could miss TX ready interrupt */
-                if (!qmgr_stat_empty(txreadyq)) {
+                if (!qmgr_stat_nearly_empty(txreadyq)) {
 #if DEBUG_TX
                         printk(KERN_DEBUG "%s: hss_hdlc_xmit ready again\n",
                                dev->name);
@@ -1249,7 +1251,7 @@ static int __devinit hss_init_one(struct platform_device *pdev)
                 return -ENOMEM;
 
         if ((port->npe = npe_request(0)) == NULL) {
-                err = -ENOSYS;
+                err = -ENODEV;
                 goto err_free;
         }
 
@@ -1311,7 +1313,7 @@ static int __init hss_init_module(void)
         if ((ixp4xx_read_feature_bits() &
              (IXP4XX_FEATURE_HDLC | IXP4XX_FEATURE_HSS)) !=
             (IXP4XX_FEATURE_HDLC | IXP4XX_FEATURE_HSS))
-                return -ENOSYS;
+                return -ENODEV;
 
         spin_lock_init(&npe_lock);