* @arg: this is third argument given to ioctl(2) system call.
* Often contains a pointer.
*
- * Returns 0 if successful (some ioctls return postive numbers on
+ * Returns 0 if successful (some ioctls return positive numbers on
* success as well). Returns a negated errno value in case of error.
*
* Note: most ioctls are forward onto the block subsystem or further