[PATCH v2] wifi: ipw2x00: don't call dev_kfree_skb() under spin_lock_irqsave()

It is not allowed to call kfree_skb() or consume_skb() from hardware
interrupt context or with hardware interrupts being disabled.

It should use dev_kfree_skb_irq() or dev_consume_skb_irq() instead.
The difference between them is free reason, dev_kfree_skb_irq() means
the SKB is dropped in error and dev_consume_skb_irq() means the SKB
is consumed in normal.

In this case, dev_kfree_skb() is called to free and drop the SKB when
it's reset, so replace it with dev_kfree_skb_irq(). Compile tested
only.

Fixes: 43f66a6ce8da ("Add ipw2200 wireless driver.")
Signed-off-by: Yang Yingliang <redacted>
---
v1 -> v2:
  Update commit message, and change to use dev_kfree_skb_irq().
---
 drivers/net/wireless/intel/ipw2x00/ipw2200.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2200.c b/drivers/net/wireless/intel/ipw2x00/ipw2200.c
index 5b483de18c81..9ec1d6b2e5f8 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2200.c

@@ -3441,7 +3441,7 @@ static void ipw_rx_queue_reset(struct ipw_priv *priv,
 			dma_unmap_single(&priv->pci_dev->dev,
 					 rxq->pool[i].dma_addr,
 					 IPW_RX_BUF_SIZE, DMA_FROM_DEVICE);
-			dev_kfree_skb(rxq->pool[i].skb);
+			dev_kfree_skb_irq(rxq->pool[i].skb);
 			rxq->pool[i].skb = NULL;
 		}
 		list_add_tail(&rxq->pool[i].list, &rxq->rx_used);

-- 
2.25.1