Como soluciono los warning del dsdt?

Hola,

estos son los warning que me tira el dsdt.dsl,


./dsdt_fixed.txt 3683: Method (OCOP, 1, NotSerialized)
Warning 1087 - Not all control paths return a value ^ (OCOP)

./dsdt_fixed.txt 4379: Method (PROC, 3, NotSerialized)
Warning 1087 - Not all control paths return a value ^ (PROC)

./dsdt_fixed.txt 5185: Subtract (Local2, 0x1E)
Warning 1105 - Result is not used, operator has no effect ^

./dsdt_fixed.txt 5186: Subtract (Local4, 0x4B)
Warning 1105 - Result is not used, operator has no effect ^

./dsdt_fixed.txt 5404: Store (PROC (Local0, Local1, Zero), Local2)
Warning 1092 - Called method may not always return a value ^

./dsdt_fixed.txt 8131: Release (SMBA)
Warning 1099 - Statement is unreachable ^

./dsdt_fixed.txt 10480: Method (WFZF, 1, NotSerialized)
Warning 1087 - ^ Not all control paths return a value (WFZF)

./dsdt_fixed.txt 11526: Method (VGET, 1, NotSerialized)
Warning 1087 - ^ Not all control paths return a value (VGET)

./dsdt_fixed.txt 11571: Method (TGET, 1, NotSerialized)
Warning 1087 - ^ Not all control paths return a value (TGET)

./dsdt_fixed.txt 11624: Method (FGET, 1, NotSerialized)
Warning 1087 - ^ Not all control paths return a value (FGET)

./dsdt_fixed.txt 11655: Store (VGET (Local0), Local1)
Warning 1092 - ^ Called method may not always return a value

./dsdt_fixed.txt 11697: Store (TGET (Local0), Local1)
Warning 1092 - ^ Called method may not always return a value

./dsdt_fixed.txt 11730: Store (FGET (Local0), Local1)
Warning 1092 - ^ Called method may not always return a value

./dsdt_fixed.txt 12066: ShiftRight (BUF2, 0x04)
Warning 1105 - Result is not used, operator has no effect ^

ya se que en la guia dice que no hay que preocuparse por los warning pero me gustaría cómo

arreglar cada uno de ellos.

Muchas gracias por la ayuda que prestais