diff options
| author | Michael Buesch <mb@bu3sch.de> | 2009-02-19 20:17:36 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-02-27 14:52:47 -0500 |
| commit | ca2d559e1a41d62a5b49fb9ab513025ea27f1e7c (patch) | |
| tree | 3123aa59d4323b1cd0861946761377e91ffe86e5 /drivers/net/wireless/b43/dma.c | |
| parent | dbaaa147d6396c41d8f31156a777dfdaae2335a4 (diff) | |
b43: Move DMA stop sanity check
Move the DMA stop sanity check up a few lines, so it's actually
theoretically possible to trigger. (But it still shouldn't trigger, of course).
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/b43/dma.c')
| -rw-r--r-- | drivers/net/wireless/b43/dma.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c index 6d65a02b7052..0f021c666d08 100644 --- a/drivers/net/wireless/b43/dma.c +++ b/drivers/net/wireless/b43/dma.c @@ -1306,16 +1306,18 @@ int b43_dma_tx(struct b43_wldev *dev, struct sk_buff *skb) } spin_lock_irqsave(&ring->lock, flags); + B43_WARN_ON(!ring->tx); + /* Check if the queue was stopped in mac80211, + * but we got called nevertheless. + * That would be a mac80211 bug. */ + B43_WARN_ON(ring->stopped); + if (unlikely(free_slots(ring) < SLOTS_PER_PACKET)) { b43warn(dev->wl, "DMA queue overflow\n"); err = -ENOSPC; goto out_unlock; } - /* Check if the queue was stopped in mac80211, - * but we got called nevertheless. - * That would be a mac80211 bug. */ - B43_WARN_ON(ring->stopped); /* Assign the queue number to the ring (if not already done before) * so TX status handling can use it. The queue to ring mapping is |