Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/net/wimax/i2400m/usb-tx.c b/drivers/net/wimax/i2400m/usb-tx.c
index c65b997..ac357ac 100644
--- a/drivers/net/wimax/i2400m/usb-tx.c
+++ b/drivers/net/wimax/i2400m/usb-tx.c
@@ -168,7 +168,7 @@
 /*
  * Get the next TX message in the TX FIFO and send it to the device
  *
- * Note we exit the loop if i2400mu_tx() fails; that funtion only
+ * Note we exit the loop if i2400mu_tx() fails; that function only
  * fails on hard error (failing to tx a buffer not being one of them,
  * see its doc).
  *