rt2x00: check for dma mappings errors
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>
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 9a3f31a..086abb4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -1169,8 +1169,10 @@
/**
* 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.