Merge branch 'net-smc-fixes-2020-10-23'

Karsten Graul says:

====================
net/smc: fixes 2020-10-23

Patch 1 fixes a potential null pointer dereference. Patch 2 takes care
of a suppressed return code and patch 3 corrects the system EID in the
ISM driver.
====================

Link: https://lore.kernel.org/r/20201023184830.59548-1-kgraul@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>