treewide: Fix typo in printk and comments

Fix typo in printk and comments within various drivers.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index a6c2fe4..55cc990 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1292,7 +1292,7 @@
 		break;
 	default:
 		return snprintf(buf, PAGE_SIZE,
-				"Unkown Adapter Family: 0x%x\n", dev_id);
+				"Unknown Adapter Family: 0x%x\n", dev_id);
 		break;
 	}
 }