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-rw-r--r--drivers/net/depca.c3
-rw-r--r--drivers/net/hamradio/baycom_ser_fdx.c6
-rw-r--r--drivers/net/sis900.c44
3 files changed, 26 insertions, 27 deletions
diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index 5113eef755b9..f3807aaf10aa 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -1491,8 +1491,9 @@ static void __init depca_platform_probe (void)
depca_io_ports[i].device = pldev;
if (platform_device_add(pldev)) {
- platform_device_put(pldev);
depca_io_ports[i].device = NULL;
+ pldev->dev.platform_data = NULL;
+ platform_device_put(pldev);
continue;
}
diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c
index 59214e74b9cf..30baf6ecfc63 100644
--- a/drivers/net/hamradio/baycom_ser_fdx.c
+++ b/drivers/net/hamradio/baycom_ser_fdx.c
@@ -75,12 +75,14 @@
#include <linux/ioport.h>
#include <linux/string.h>
#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
#include <linux/hdlcdrv.h>
#include <linux/baycom.h>
#include <linux/jiffies.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+
/* --------------------------------------------------------------------- */
#define BAYCOM_DEBUG
diff --git a/drivers/net/sis900.c b/drivers/net/sis900.c
index b3750f284279..b2a3b19d773a 100644
--- a/drivers/net/sis900.c
+++ b/drivers/net/sis900.c
@@ -1755,6 +1755,24 @@ static int sis900_rx(struct net_device *net_dev)
} else {
struct sk_buff * skb;
+ pci_unmap_single(sis_priv->pci_dev,
+ sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ /* refill the Rx buffer, what if there is not enought
+ * memory for new socket buffer ?? */
+ if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) {
+ /*
+ * Not enough memory to refill the buffer
+ * so we need to recycle the old one so
+ * as to avoid creating a memory hole
+ * in the rx ring
+ */
+ skb = sis_priv->rx_skbuff[entry];
+ sis_priv->stats.rx_dropped++;
+ goto refill_rx_ring;
+ }
+
/* This situation should never happen, but due to
some unknow bugs, it is possible that
we are working on NULL sk_buff :-( */
@@ -1768,9 +1786,6 @@ static int sis900_rx(struct net_device *net_dev)
break;
}
- pci_unmap_single(sis_priv->pci_dev,
- sis_priv->rx_ring[entry].bufptr, RX_BUF_SIZE,
- PCI_DMA_FROMDEVICE);
/* give the socket buffer to upper layers */
skb = sis_priv->rx_skbuff[entry];
skb_put(skb, rx_size);
@@ -1783,33 +1798,14 @@ static int sis900_rx(struct net_device *net_dev)
net_dev->last_rx = jiffies;
sis_priv->stats.rx_bytes += rx_size;
sis_priv->stats.rx_packets++;
-
- /* refill the Rx buffer, what if there is not enought
- * memory for new socket buffer ?? */
- if ((skb = dev_alloc_skb(RX_BUF_SIZE)) == NULL) {
- /* not enough memory for skbuff, this makes a
- * "hole" on the buffer ring, it is not clear
- * how the hardware will react to this kind
- * of degenerated buffer */
- if (netif_msg_rx_status(sis_priv))
- printk(KERN_INFO "%s: Memory squeeze,"
- "deferring packet.\n",
- net_dev->name);
- sis_priv->rx_skbuff[entry] = NULL;
- /* reset buffer descriptor state */
- sis_priv->rx_ring[entry].cmdsts = 0;
- sis_priv->rx_ring[entry].bufptr = 0;
- sis_priv->stats.rx_dropped++;
- sis_priv->cur_rx++;
- break;
- }
+ sis_priv->dirty_rx++;
+refill_rx_ring:
skb->dev = net_dev;
sis_priv->rx_skbuff[entry] = skb;
sis_priv->rx_ring[entry].cmdsts = RX_BUF_SIZE;
sis_priv->rx_ring[entry].bufptr =
pci_map_single(sis_priv->pci_dev, skb->data,
RX_BUF_SIZE, PCI_DMA_FROMDEVICE);
- sis_priv->dirty_rx++;
}
sis_priv->cur_rx++;
entry = sis_priv->cur_rx % NUM_RX_DESC;