spelling: s/usefull/useful/
Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/drivers/net/sk98lin/skgepnmi.c b/drivers/net/sk98lin/skgepnmi.c
index 58e1a5be..a386172 100644
--- a/drivers/net/sk98lin/skgepnmi.c
+++ b/drivers/net/sk98lin/skgepnmi.c
@@ -611,7 +611,7 @@
* Description:
* Calls a general sub-function for all this stuff. The preset does
* the same as a set, but returns just before finally setting the
- * new value. This is usefull to check if a set might be successfull.
+ * new value. This is useful to check if a set might be successfull.
* If the instance -1 is passed, an array of values is supposed and
* all instances of the OID will be set.
*
@@ -654,7 +654,7 @@
* Description:
* Calls a general sub-function for all this stuff. The preset does
* the same as a set, but returns just before finally setting the
- * new value. This is usefull to check if a set might be successfull.
+ * new value. This is useful to check if a set might be successfull.
* If the instance -1 is passed, an array of values is supposed and
* all instances of the OID will be set.
*
@@ -870,7 +870,7 @@
* Description:
* Calls a general sub-function for all this set stuff. The preset does
* the same as a set, but returns just before finally setting the
- * new value. This is usefull to check if a set might be successfull.
+ * new value. This is useful to check if a set might be successfull.
* The sub-function runs through the IdTable, checks which OIDs are able
* to set, and calls the handler function of the OID to perform the
* preset. The return value of the function will also be stored in
@@ -6473,7 +6473,7 @@
*
* Description:
* The COMMON module only tells us if the mode is half or full duplex.
- * But in the decade of auto sensing it is usefull for the user to
+ * But in the decade of auto sensing it is useful for the user to
* know if the mode was negotiated or forced. Therefore we have a
* look to the mode, which was last used by the negotiation process.
*