fix typo "insted" -> "instead"

Signed-off-by: Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
diff --git a/drivers/firewire/fw-transaction.c b/drivers/firewire/fw-transaction.c
index 9959b79..c00d4a9 100644
--- a/drivers/firewire/fw-transaction.c
+++ b/drivers/firewire/fw-transaction.c
@@ -228,7 +228,7 @@
  *
  * @param card the card from which to send the request
  * @param tcode the tcode for this transaction.  Do not use
- *   TCODE_LOCK_REQUEST directly, insted use TCODE_LOCK_MASK_SWAP
+ *   TCODE_LOCK_REQUEST directly, instead use TCODE_LOCK_MASK_SWAP
  *   etc. to specify tcode and ext_tcode.
  * @param node_id the destination node ID (bus ID and PHY ID concatenated)
  * @param generation the generation for which node_id is valid