FIX: minor fixes

Author: Oleksandr Motsak

kernel/syz0.cc

@@ -576,7 +576,7 @@ static ideal sySchreyersSyzygiesFB(ideal arg,intvec ** modcomp,ideal mW,BOOLEAN
         if (k<Fl)
         {
           number an=nCopy(pGetCoeff(F[k])),bn=nCopy(pGetCoeff(F[j]));
-          int ct = ksCheckCoeff(&an, &bn);
+          int ct = ksCheckCoeff(&an, &bn, currRing->cf);
           syz = pCopy(pairs[k]);
           //syz->coef = nCopy(F[k]->coef);
           syz->coef = an;

kernel/syz3.cc

@@ -1767,7 +1767,7 @@ syStrategy syKosz(ideal arg,int * length)
 /*--- changes to a Cdp-ring ----------------------------*/
   syzstr->syRing = rAssure_C_dp(origR, TRUE); rChangeCurrRing(syzstr->syRing);
 /*--- initializes the data structures---------------*/
-  syzstr->length = *length = (currRing->N)+2;
+  syzstr->length = *length = (syzstr->syRing->N)+2;
   syzstr->regularity = -1;
   if (origR!=syzstr->syRing)
     temp = idrCopyR(arg, origR, syzstr->syRing);