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rt2x00: check for dma mappings errors

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Check output of dma_map_single functions which nowadays can fail (when
IOMMU is used). On write_beacon callbacks just print error, similar
like padding error is handled by rt2800_write_beacon.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Stanislaw Gruszka
2013-02-13 14:27:05 +01:00
committed by John W. Linville
parent 52301a815e
commit 4ea545d476
4 changed files with 36 additions and 13 deletions
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4
drivers/net/wireless/rt2x00/rt2x00.h
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@@ -1169,8 +1169,10 @@ static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
/**
* rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
* @entry: Pointer to &struct queue_entry
*
* Returns -ENOMEM if mapping fail, 0 otherwise.
*/
void rt2x00queue_map_txskb(struct queue_entry *entry);
int rt2x00queue_map_txskb(struct queue_entry *entry);
/**
* rt2x00queue_unmap_skb - Unmap a skb from DMA.