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authorMichael Buesch <mb@bu3sch.de>2008-03-28 11:46:58 +0100
committerJohn W. Linville <linville@tuxdriver.com>2008-04-01 15:44:08 -0400
commit539e6f8cffe9299fbf813ad574535b90ac370031 (patch)
tree8cce36a4d420c248e60c97ee02729dbd88a8f109 /drivers/net/wireless
parent64f851e410ae37a0990212ae34f0c96b641478f7 (diff)
b43: Add DMA mapping failure messages
This adds messages for some DMA mapping failures. These are useful for debugging DMA address problems, as they appear on x86_64 machines with IOMMU enabled. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/b43/dma.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index cfbc1a26f60..948eb1fe916 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -619,6 +619,7 @@ static int setup_rx_descbuffer(struct b43_dmaring *ring,
}
if (b43_dma_mapping_error(ring, dmaaddr, ring->rx_buffersize, 0)) {
+ b43err(ring->dev->wl, "RX DMA buffer allocation failed\n");
dev_kfree_skb_any(skb);
return -EIO;
}
@@ -874,8 +875,12 @@ struct b43_dmaring *b43_setup_dmaring(struct b43_wldev *dev,
DMA_TO_DEVICE);
if (b43_dma_mapping_error(ring, dma_test,
- b43_txhdr_size(dev), 1))
+ b43_txhdr_size(dev), 1)) {
+
+ b43err(dev->wl,
+ "TXHDR DMA allocation failed\n");
goto err_kfree_txhdr_cache;
+ }
}
dma_unmap_single(dev->dev->dev,