target: Fix missing length check in spc_emulate_evpd_83()
Commit fbfe858f ("target_core_spc: Include target device descriptor in VPD page 83") added a new length variable, but (due to a cut and paste mistake?) just checks scsi_name_len against 256 twice. Fix this to check scsi_target_len for overflow too. Signed-off-by: NRoland Dreier <roland@purestorage.com> Signed-off-by: NNicholas Bellinger <nab@linux-iscsi.org>
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