lib: clear data pointer in bf_free

Help avoid double-free by clearing data pointer.

Signed-off-by: Mark Stapp <mjs@voltanet.io>

diff --git a/lib/bitfield.h b/lib/bitfield.h
index eebfc049d9006838d04ace8bf4401669f1e19bb2..2d98760df756f451215cc264b9e1f7388ebe4b36 100644 (file)
--- a/lib/bitfield.h
+++ b/lib/bitfield.h
@@ -154,6 +154,7 @@ typedef unsigned int word_t;
        do {                                                                   \
                if ((v).data) {                                                \
                        free((v).data);                                        \
+                       (v).data = NULL;                                       \
                }                                                              \
        } while (0)