Remove the unnecessary gotos and just return directly in error cases.
Fix the last error condition so it returns the result of cdev_add()
instead of always zero.
Signed-off-by: Ken Depro <kenneth.depro@unisys.com> Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>