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authorPaul Mundt <lethal@linux-sh.org>2012-01-09 11:12:55 +0900
committerPaul Mundt <lethal@linux-sh.org>2012-01-09 11:12:55 +0900
commitca371d2854d48c0c22e7aa031df182f96dc85820 (patch)
tree1c62be8b4da0bfc82fa7ffa1ad5b0e958266cbd1 /drivers/net/wireless/rt2x00/rt2x00usb.c
parent0d376945d0bc0a8f8e00861d506b10e42e8af372 (diff)
parenta0e86bd4252519321b0d102dc4ed90557aa7bee9 (diff)
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into sh-latest
Conflicts: arch/arm/mach-shmobile/clock-sh73a0.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00usb.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00usb.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 1e31050dafc9..2eea3866504d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -298,12 +298,22 @@ static bool rt2x00usb_kick_tx_entry(struct queue_entry *entry, void* data)
return false;
/*
- * USB devices cannot blindly pass the skb->len as the
- * length of the data to usb_fill_bulk_urb. Pass the skb
- * to the driver to determine what the length should be.
+ * USB devices require certain padding at the end of each frame
+ * and urb. Those paddings are not included in skbs. Pass entry
+ * to the driver to determine what the overall length should be.
*/
length = rt2x00dev->ops->lib->get_tx_data_len(entry);
+ status = skb_padto(entry->skb, length);
+ if (unlikely(status)) {
+ /* TODO: report something more appropriate than IO_FAILED. */
+ WARNING(rt2x00dev, "TX SKB padding error, out of memory\n");
+ set_bit(ENTRY_DATA_IO_FAILED, &entry->flags);
+ rt2x00lib_dmadone(entry);
+
+ return false;
+ }
+
usb_fill_bulk_urb(entry_priv->urb, usb_dev,
usb_sndbulkpipe(usb_dev, entry->queue->usb_endpoint),
entry->skb->data, length,