CKTfndMod(), rewrite error expressions

src/frontend/spiceif.c

@@ -611,7 +611,6 @@ finddev_special(
     GENmodel **modptr,
     int *device_or_model)
 {
-    int err;
     int type = -1;
 
     *devptr = ft_sim->findInstance (ckt, name);
@@ -625,8 +624,7 @@ finddev_special(
     // assert(second && *second == -1)
     // assert(third && *third == NULL)
     *modptr = ft_sim->findModel (ckt, &type, modptr, name);
-    err = *modptr ? OK : E_NOMOD;
-    if (err == OK) {
+    if (*modptr) {
         *device_or_model = 1;
         return (type);
     }
@@ -1214,7 +1212,6 @@ doset(CKTcircuit *ckt, int typecode, GENinstance *dev, GENmodel *mod, IFparm *op
 static int
 finddev(CKTcircuit *ckt, char *name, GENinstance **devptr, GENmodel **modptr)
 {
-    int err;
     int type = -1;
 
     *devptr = ft_sim->findInstance (ckt, name);
@@ -1226,8 +1223,7 @@ finddev(CKTcircuit *ckt, char *name, GENinstance **devptr, GENmodel **modptr)
     // assert(second && *second == -1)
     // assert(third && *third == NULL)
     *modptr = ft_sim->findModel (ckt, &type, modptr, name);
-    err = *modptr ? OK : E_NOMOD;
-    if (err == OK)
+    if (*modptr)
         return (type);
 
     *modptr = NULL;

src/spicelib/analysis/cktmcrt.c

@@ -21,13 +21,11 @@ int
 CKTmodCrt(CKTcircuit *ckt, int type, GENmodel **modfast, IFuid name)
 {
     GENmodel *mymodfast = NULL;
-    int error;
 
     // assert(second)
     // assert(third && *third == NULL)
     mymodfast = CKTfndMod(ckt, &type, &mymodfast, name);
-    error = mymodfast ? OK : E_NOMOD;
-    if(error == E_NOMOD) {
+    if(!mymodfast) {
         mymodfast = (GENmodel *) tmalloc((size_t) *(DEVices[type]->DEVmodSize));
         if(mymodfast == NULL) return(E_NOMEM);
         mymodfast->GENmodType = type;
@@ -36,11 +34,9 @@ CKTmodCrt(CKTcircuit *ckt, int type, GENmodel **modfast, IFuid name)
         ckt->CKThead[type] = mymodfast;
         if(modfast) *modfast=mymodfast;
         return(OK);
-    } else if (error==0) {
+    } else {
         if(modfast) *modfast=mymodfast;
         return(E_EXISTS);
-    } else {
-        return(error);
     }
     /*NOTREACHED*/
 }

src/spicelib/devices/urc/urcsetup.c

@@ -311,9 +311,8 @@ URCunsetup(GENmodel *inModel, CKTcircuit *ckt)
             // assert(second && *second == -1)
             // assert(third && *third == NULL)
 	    modfast = CKTfndMod(ckt, &type, &modfast, varUid);
-            error = modfast ? OK : E_NOMOD;
-	    if (error)
-		return error;
+	    if (!modfast)
+		return E_NOMOD;
 
 	    for (in = modfast->GENinstances; in; in = in->GENnextInstance)
 		CKTdltNNum(ckt, in->GENnode1);
@@ -331,9 +330,8 @@ URCunsetup(GENmodel *inModel, CKTcircuit *ckt)
             // assert(second && *second == -1)
             // assert(third && *third == NULL)
 	    modfast = CKTfndMod(ckt, &type, &modfast, varUid);
-            error = modfast ? OK : E_NOMOD;
-	    if (error)
-		return error;
+	    if (!modfast)
+		return E_NOMOD;
 
 	    CKTdltMod(ckt, modfast);
 	}