diff --git a/src/metadata/metadata.c b/src/metadata/metadata.c
index 8507a2d..537f8e0 100644
--- a/src/metadata/metadata.c
+++ b/src/metadata/metadata.c
@@ -1485,18 +1485,12 @@ void ocf_metadata_get_core_and_part_id(struct ocf_cache *cache,
 	info =  ocf_metadata_raw_rd_access(cache,
 			&(ctrl->raw_desc[metadata_segment_list_info]), line);
 
-	if (collision && info) {
-		if (core_id)
-			*core_id = collision->core_id;
-		if (part_id)
-			*part_id = info->partition_id;
-	} else {
-		ocf_metadata_error(cache);
-		if (core_id)
-			*core_id = OCF_CORE_MAX;
-		if (part_id)
-			*part_id = PARTITION_DEFAULT;
-	}
+	ENV_BUG_ON(!collision || !info);
+
+	if (core_id)
+		*core_id = collision->core_id;
+	if (part_id)
+		*part_id = info->partition_id;
 }
 /*******************************************************************************
  * Hash Table
diff --git a/src/metadata/metadata_core.c b/src/metadata/metadata_core.c
index 9f49c94..d501741 100644
--- a/src/metadata/metadata_core.c
+++ b/src/metadata/metadata_core.c
@@ -20,19 +20,13 @@ void ocf_metadata_get_core_info(struct ocf_cache *cache,
 
 	collision = ocf_metadata_raw_rd_access(cache,
 			&(ctrl->raw_desc[metadata_segment_collision]), line);
-	if (collision) {
-		if (core_id)
-			*core_id = collision->core_id;
-		if (core_sector)
-			*core_sector = collision->core_line;
-	} else {
-		ocf_metadata_error(cache);
 
-		if (core_id)
-			*core_id = OCF_CORE_MAX;
-		if (core_sector)
-			*core_sector = ULLONG_MAX;
-	}
+	ENV_BUG_ON(!collision);
+
+	if (core_id)
+		*core_id = collision->core_id;
+	if (core_sector)
+		*core_sector = collision->core_line;
 }
 
 void ocf_metadata_set_core_info(struct ocf_cache *cache,
diff --git a/src/utils/utils_part.h b/src/utils/utils_part.h
index 17c5fb2..c37a43d 100644
--- a/src/utils/utils_part.h
+++ b/src/utils/utils_part.h
@@ -61,7 +61,8 @@ static inline uint32_t ocf_part_get_min_size(ocf_cache_t cache,
 {
 	uint64_t ioclass_size;
 
-	ioclass_size = part->config->min_size * cache->conf_meta->cachelines;
+	ioclass_size = (uint64_t)part->config->min_size *
+		(uint64_t)cache->conf_meta->cachelines;
 
 	ioclass_size /= 100;