scsi: scsi_dh_rdac: zero cdb in send_mode_select()
cdb in send_mode_select() is not zeroed and is only partially filled in rdac_failover_get(), which leads to some random data getting to the device. Users have reported storage responding to such commands with INVALID FIELD IN CDB. Code before commit 32782557 was not affected, as it called blk_rq_set_block_pc(). Fix this by zeroing out the cdb first. Identified & fix proposed by HPE. Fixes: 32782557 ("scsi_dh_rdac: switch to scsi_execute_req_flags()") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20190904155205.1666-1-martin.wilck@suse.com Signed-off-by:Martin Wilck <mwilck@suse.com> Acked-by:
Ales Novak <alnovak@suse.cz> Reviewed-by:
Shane Seymour <shane.seymour@hpe.com> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com>
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