i40e: better return values
As mentioned by Joe Perches, clean up return values in some functions making sure to have consistent return types, not mixing types. A couple of Joe's comments suggested returning void, but since the functions in question are ndo defined, the return values are fixed. So make a comment in the header that notes this is a function called by net_device_ops. v2: fix post increment bug in return CC: Joe Perches <joe@perches.com> Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: NKavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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