Using defer

[aiburegit]

https://github.com/vbatts/tar-split/blame/cc780eeb0b3ffe3ff4b360a8a0bd18f54c5b32ce/tar/asm/disassemble.go#L152

Good afternoon!
Can we use defer when closing pW.Close() to minimize the chance of resource leakage?

[vbatts]

defer() is useful and nice. I avoided it due to the performance findings like https://lk4d4.darth.io/posts/defer/
Do you have findings that it is being leaked?