CIFS - small cleanup/fix

Steve,

here are two patches with intention to clean too indented code. Also small fix in memcmp usage. And there is still possible NULL pointer deref in CIFSNTLMSSPNegotiateSessSetup if kzalloc fails - but I'm not sure how to properly hanlde that.

Any comments are welcome (the patches are over today Linus's git)

- Cyrill -