From a28fb072c0452d0475ea4cd7714b6664b1f48c60 Mon Sep 17 00:00:00 2001
From: OBattler <oubattler@gmail.com>
Date: Tue, 24 Mar 2020 02:52:35 +0100
Subject: [PATCH] Sanity checks in a part of video.c, per Ryuzaki's suggestion.

---
 src/video/video.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/video/video.c b/src/video/video.c
index 0c4672086..d3ed0794b 100644
--- a/src/video/video.c
+++ b/src/video/video.c
@@ -776,9 +776,11 @@ set_palette(PALETTE p)
 void
 destroy_bitmap(bitmap_t *b)
 {
-    if (b->dat != NULL)
+    if ((b != NULL) && (b->dat != NULL))
 	free(b->dat);
-    free(b);
+
+    if (b != NULL)
+	free(b);
 }