core: blob: Add helper to destroy blob list

Signed-off-by: Chloe M. <chloe@mirocom.org>

core/blob_list.c

@@ -4,6 +4,7 @@
  */
 
 #include <errno.h>
+#include <stdlib.h>
 #include "blobchain/blob.h"
 #include "blobchain/memlib.h"
 
@@ -45,3 +46,22 @@ blob_list_append(struct blob_list *lp, struct blob *blob)
     ++lp->count;
     return 0;
 }
+
+void
+blob_list_destroy(struct blob_list *lp)
+{
+    struct blob *bp, *tmp;
+
+    if (lp == NULL) {
+        return;
+    }
+
+    bp = lp->head;
+    while (bp != NULL) {
+        tmp = bp;
+        bp = bp->next;
+
+        free(tmp->data);
+        free(tmp);
+    }
+}

inc/blobchain/blob.h

@@ -60,4 +60,11 @@ int blob_list_append(struct blob_list *lp, struct blob *blob);
  */
 int blob_list_init(struct blob_list *lp);
 
+/*
+ * Destroy a blob list
+ *
+ * @lp: Bloblist to destroy
+ */
+void blob_list_destroy(struct blob_list *lp);
+
 #endif  /* !BLOBCHAIN_BLOB_H */