Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/message/i2o/i2o_block.c b/drivers/message/i2o/i2o_block.c
index 47ec5bc..643ad52 100644
--- a/drivers/message/i2o/i2o_block.c
+++ b/drivers/message/i2o/i2o_block.c
@@ -610,7 +610,7 @@
 
 	/*
 	 * This is to deail with the case of an application
-	 * opening a device and then the device dissapears while
+	 * opening a device and then the device disappears while
 	 * it's in use, and then the application tries to release
 	 * it.  ex: Unmounting a deleted RAID volume at reboot.
 	 * If we send messages, it will just cause FAILs since
@@ -717,7 +717,7 @@
 
 /**
  *	i2o_block_transfer - Transfer a request to/from the I2O controller
- *	@req: the request which should be transfered
+ *	@req: the request which should be transferred
  *
  *	This function converts the request into a I2O message. The necessary
  *	DMA buffers are allocated and after everything is setup post the message