Re: [libvirt PATCH 3/3] util: bitmap: use g_new0/g_free

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On 8/3/20 1:29 PM, Peter Krempa wrote:
On Mon, Aug 03, 2020 at 19:18:53 +0200, Ján Tomko wrote:
Signed-off-by: Ján Tomko <jtomko@xxxxxxxxxx>
---
  src/util/virbitmap.c | 20 ++++++--------------
  1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/src/util/virbitmap.c b/src/util/virbitmap.c
index 4c205016ff..f7dd5d05ad 100644
--- a/src/util/virbitmap.c
+++ b/src/util/virbitmap.c
[...]

@@ -126,10 +121,9 @@ virBitmapNewEmpty(void)
  void
  virBitmapFree(virBitmapPtr bitmap)
  {
-    if (bitmap) {
-        VIR_FREE(bitmap->map);
-        VIR_FREE(bitmap);
-    }
+    if (bitmap)
+        g_free(bitmap->map);
Preferrably keep this VIR_FREE or it's expansion to g_clear_pointer. If
a caller uses a stale pointer, it will crash on dereferencing this part.


This is an argument for NULLifying *all* pointers when they are freed (yes, even things on the stack).




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