[SCSI] qla2xxx: Remove a dead assignment in qla24xx_build_scsi_crc_2_iocbs().

Since the value of cur_seg is not used and since scsi_prot_sglist()
has no side effects it is safe to remove the statement
"cur_seg = scsi_port_sglist(cmd)". Detected by Coverity.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

drivers/scsi/qla2xxx/qla_iocb.c

@@ -1189,7 +1189,6 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
 	uint32_t		*cur_dsd, *fcp_dl;
 	scsi_qla_host_t		*vha;
 	struct scsi_cmnd	*cmd;
-	struct scatterlist	*cur_seg;
 	int			sgc;
 	uint32_t		total_bytes = 0;
 	uint32_t		data_bytes;
@@ -1396,7 +1395,6 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
 
 	if (bundling && tot_prot_dsds) {
 		/* Walks dif segments */
-		cur_seg = scsi_prot_sglist(cmd);
 		cmd_pkt->control_flags |=
 			__constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
 		cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;