Fix ide-scsi.c uninitialized variable

drivers/scsi/ide-scsi.c

@@ -517,6 +517,7 @@ static ide_startstop_t idescsi_issue_pc (ide_drive_t *drive, idescsi_pc_t *pc)
 	pc->current_position=pc->buffer;
 	bcount.all = IDE_MIN(pc->request_transfer, 63 * 1024);		/* Request to transfer the entire buffer at once */
 
+	feature.all = 0;
 	if (drive->using_dma && rq->bio) {
 		if (test_bit(PC_WRITING, &pc->flags))
 			feature.b.dma = !HWIF(drive)->ide_dma_write(drive);