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The zfcp_port might have been removed, while the FC fast_io_fail timer is still running and could trigger the terminate_rport_io callback. Set the pointer to the zfcp_port to NULL and check accordingly before using it. Reviewed-by: Martin Petermann <martin@linux.vnet.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>