[SCSI] libosd: Fix NULL dereference BUG when target is not OSD conformant
Very old OSC's Target had a BUG in the Get/Set attributes where it was looking in the wrong places for attribute lists length. If used with the open-osd initiator, the initiator would dereference a NULL pointer when retrieving system_information attributes. Checks are added that retrieval of each attribute is successful before accessing its value. Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
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