Memory Leakage in ThirdParty C-Code/C-Library -

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i have memory leakage in absolut frustrating third party static library...i narrow down following function "read_lut". think leakage because of p = (struct csoln*) malloc(ns*sizeof(struct csoln)); c very rusty when comes down memory handling... can me free memory correctly?

 void readlut()  {      unsigned char charnum[256], line[32], *linep, c;      file *fpwv, *fprt;      struct csoln *p;      int d, i, j, k, kk, ns, nn;       init_param();       (i=0; i<=255; i++) {          if ('0'<=i && i<='9')              charnum[i] = - '0';          else if (i>='a')              charnum[i] = - 'a' + 10;          else // if (i=='$' || i=='\n' || ... )              charnum[i] = 0;      }       fpwv=fopen(powvfile, "r");      if (fpwv == null) {          printf("error in opening %s\n", powvfile);          exit(1);      }   #if routing==1      fprt=fopen(postfile, "r");      if (fprt == null) {          printf("error in opening %s\n", postfile);          exit(1);      }  #endif       (d=4; d<=d; d++) {          fscanf(fpwv, "d=%d\n", &d);  #if routing==1          fscanf(fprt, "d=%d\n", &d);  #endif          (k=0; k<numgrp[d]; k++) {              ns = (int) charnum[fgetc(fpwv)];               if (ns==0) {  // same previous group                  fscanf(fpwv, "%d\n", &kk);                  numsoln[d][k] = numsoln[d][kk];                  lut[d][k] = lut[d][kk];              }              else {                  fgetc(fpwv);  // '\n'                  numsoln[d][k] = ns;                  p = (struct csoln*) malloc(ns*sizeof(struct csoln));                  lut[d][k] = p;                  (i=1; i<=ns; i++) {                      linep = (unsigned char *) fgets((char *) line, 32, fpwv);                      p->parent = charnum[*(linep++)];                      j = 0;                      while ((p->seg[j++] = charnum[*(linep++)]) != 0) ;                      j = 10;                      while ((p->seg[j--] = charnum[*(linep++)]) != 0) ;  #if routing==1                      nn = 2*d-2;                      fread(line, 1, d-2, fprt); linep=line;                      (j=d; j<nn; j++) {                          c = charnum[*(linep++)];                          p->rowcol[j-d] = c;                      }                      fread(line, 1, nn/2+1, fprt); linep=line;  // last char \n                      (j=0; j<nn; ) {                          c = *(linep++);                          p->neighbor[j++] = c/16;                          p->neighbor[j++] = c%16;                      }  #endif                      p++;                  }              }          }      }  }

lut defined globally as:

struct csoln  { unsigned char parent; unsigned char seg[11];  // add: 0..i, sub: j..10; seg[i+1]=seg[j-1]=0 unsigned char rowcol[d-2];  // row = rowcol[]/16, col = rowcol[]%16,  unsigned char neighbor[2*d-2]; }; struct csoln *lut[d+1][mgroup];  // storing 4 .. d


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