From bf49cd33a30aa6325872fb29ad0669bb5b5852fb Mon Sep 17 00:00:00 2001
From: "Chloe M." <chloe@mirocom.org>
Date: Sun, 24 May 2026 17:02:40 -0500
Subject: [PATCH] core: balloon: Add balloon_free() function

Signed-off-by: Chloe M. <chloe@mirocom.org>
---
 mvm/core/balloon_subr.c   | 13 +++++++++++++
 mvm/include/mvm/balloon.h |  7 +++++++
 2 files changed, 20 insertions(+)

diff --git a/mvm/core/balloon_subr.c b/mvm/core/balloon_subr.c
index 68ab7b8..2a4b584 100644
--- a/mvm/core/balloon_subr.c
+++ b/mvm/core/balloon_subr.c
@@ -73,3 +73,16 @@ balloon_memcpy(struct mvm_balloon *dest, off_t off, void *source, size_t count)
     memcpy((char *)dest->data + off, source, count);
     return 0;
 }
+
+void
+balloon_free(struct mvm_balloon *bp)
+{
+    if (bp == NULL) {
+        return;
+    }
+
+    if (bp->data != NULL) {
+        free(bp->data);
+        bp->data = NULL;
+    }
+}
diff --git a/mvm/include/mvm/balloon.h b/mvm/include/mvm/balloon.h
index 26a2609..cb12c6a 100644
--- a/mvm/include/mvm/balloon.h
+++ b/mvm/include/mvm/balloon.h
@@ -50,4 +50,11 @@ int balloon_init(struct mvm_balloon *bp, size_t cap);
  */
 int balloon_memcpy(struct mvm_balloon *dest, off_t off, void *source, size_t count);
 
+/*
+ * Release a balloon from memory
+ *
+ * @bp: Balloon to free
+ */
+void balloon_free(struct mvm_balloon *bp);
+
 #endif  /* !MVM_BALLOON_H */