Staging: otus: fix coding style issues in ioctl.c

This is a patch to the ioctl.c file that fixes up the following
issues:

ERROR: that open brace { should be on the previous line				x  3
WARNING: please, no space before tabs								x  1
ERROR: space required before the open parenthesis '('				x  5
WARNING: braces {} are not necessary for single statement blocks	x  2
ERROR: space prohibited after that '!' (ctx:BxW)					x  1
WARNING: suspect code indent for conditional statements				x  2
ERROR: do not use C99 // comments									x  1
WARNING: braces {} are not necessary for any arm of this statement	x  4

Signed-off-by: Gustavo Silva <silvagustavo@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>