diff --git a/src/mms/asn1/ber_integer.c b/src/mms/asn1/ber_integer.c
index 39bac880..9a7e8030 100644
--- a/src/mms/asn1/ber_integer.c
+++ b/src/mms/asn1/ber_integer.c
@@ -203,63 +203,45 @@ BerInteger_createFromInt64(int64_t value)
     return asn1Value;
 }
 
-int /* 1 - if conversion is possible, 0 - out of range */
+void
 BerInteger_toInt32(Asn1PrimitiveValue* self, int32_t* nativeValue)
 {
-    if (self->size < 5) {
-        uint8_t* buf = self->octets;
-        int i;
-
-        if (buf[0] & 0x80) /* sign extension */
-            *nativeValue = 0xffffffff;
-        else
-            *nativeValue = 0;
-
-        for (i = 0; i < self->size; i++)
-            *nativeValue = (*nativeValue << 8) | buf[i];
+    uint8_t* buf = self->octets;
+    int i;
 
-        return 1;
-    }
+    if (buf[0] & 0x80) /* sign extension */
+        *nativeValue = 0xffffffff;
     else
-        return 0;
+        *nativeValue = 0;
+
+    for (i = 0; i < self->size; i++)
+        *nativeValue = (*nativeValue << 8) | buf[i];
 }
 
-int /* 1 - if conversion is possible, 0 - out of range */
+void
 BerInteger_toUint32(Asn1PrimitiveValue* self, uint32_t* nativeValue)
 {
-    if (self->size < 6) {
-        uint8_t* buf = self->octets;
-        int i;
-
-        *nativeValue = 0;
+    uint8_t* buf = self->octets;
+    int i;
 
-        for (i = 0; i < self->size; i++)
-            *nativeValue = (*nativeValue << 8) | buf[i];
+    *nativeValue = 0;
 
-        return 1;
-    }
-    else
-        return 0;
+    for (i = 0; i < self->size; i++)
+        *nativeValue = (*nativeValue << 8) | buf[i];
 }
 
-int /* 1 - if conversion is possible, 0 - out of range */
+void
 BerInteger_toInt64(Asn1PrimitiveValue* self, int64_t* nativeValue)
 {
-    if (self->size < 9) {
-        uint8_t* buf = self->octets;
-        int i;
-
-        if (buf[0] & 0x80) /* sign extension */
-            *nativeValue = 0xffffffffffffffff;
-        else
-            *nativeValue = 0;
-
-        for (i = 0; i < self->size; i++)
-            *nativeValue = (*nativeValue << 8) | buf[i];
+    uint8_t* buf = self->octets;
+    int i;
 
-        return 1;
-    }
+    if (buf[0] & 0x80) /* sign extension */
+        *nativeValue = 0xffffffffffffffff;
     else
-        return 0;
+        *nativeValue = 0;
+
+    for (i = 0; i < self->size; i++)
+        *nativeValue = (*nativeValue << 8) | buf[i];
 }
 
diff --git a/src/mms/inc_private/ber_integer.h b/src/mms/inc_private/ber_integer.h
index 0e751bb5..054ad729 100644
--- a/src/mms/inc_private/ber_integer.h
+++ b/src/mms/inc_private/ber_integer.h
@@ -66,13 +66,13 @@ BerInteger_createInt64(void);
 LIB61850_INTERNAL int
 BerInteger_setInt64(Asn1PrimitiveValue* self, int64_t value);
 
-LIB61850_INTERNAL int /* 1 - if conversion is possible, 0 - out of range */
+LIB61850_INTERNAL void
 BerInteger_toInt32(Asn1PrimitiveValue* self, int32_t* nativeValue);
 
-LIB61850_INTERNAL int /* 1 - if conversion is possible, 0 - out of range */
+LIB61850_INTERNAL void
 BerInteger_toUint32(Asn1PrimitiveValue* self, uint32_t* nativeValue);
 
-LIB61850_INTERNAL int /* 1 - if conversion is possible, 0 - out of range */
+LIB61850_INTERNAL void
 BerInteger_toInt64(Asn1PrimitiveValue* self, int64_t* nativeValue);
 
 #ifdef __cplusplus