cifs: Cleanup: check return codes of crypto api calls

Check return codes of crypto api calls and either log an error or log
an error and return from the calling function with error.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --cc fs/cifs/cifsencrypt.c
Simple merge

diff --cc fs/cifs/link.c
Simple merge

diff --cc fs/cifs/smbencrypt.c
Simple merge