c - Seg Fault, malloc char pointers -

i keep getting segmentation fault , know char pointer. cant figure out why?

whiskey* createwhiskey(int a, double p, char* n){      whiskey* whiskey = malloc(sizeof(whiskey));     whiskey->age = a;     whiskey->proof = p;     whiskey->name = malloc((strlen(n)+1) * sizeof(char));     strcpy(whiskey->name, n);     return whiskey; } int main(){      whiskey* burbon;     burbon = createwhiskey(12, 90.0, "makersmark");      free(burbon);      return 0; } 

in comment alex (see below) following information added:

typedef struct{ int age; double proof; char* name; }whiskey; 

as discussed in comments program shown fine.

however, should add checks avoid problems. like:

typedef struct{ int age; double proof; char* name; } whiskey;  whiskey* createwhiskey(int a, double p, char* n){     whiskey* whiskey = malloc(sizeof(whiskey));     if (whiskey)      {         whiskey->age = a;         whiskey->proof = p;         if (strlen(n) > some_maximum)         {             free(whiskey);             printf("some error... maybe\n");             return null;         }         whiskey->name = malloc((strlen(n)+1) * sizeof(char));         if (whiskey->name)         {             strcpy(whiskey->name, n);         }         else         {             free(whiskey);             printf("some error... \n");             return null;         }     }     return whiskey; }  int main(){      whiskey* burbon;     burbon = createwhiskey(12, 90.0, "makersmark");     if (!burbon)     {         printf("some error... \n");     }          // code....      if (burbon)     {         free( burbon->name);         free(burbon);     }     return 0; }