From e9213b2b41fd60b2331ccad987409786fd337499 Mon Sep 17 00:00:00 2001
From: Hannu Hanhi <hhanhipublic@gmail.com>
Date: Sun, 4 Apr 2021 21:29:15 +0300
Subject: [PATCH] Fix a OpenGL backend DeleteTexture crash

---
 src/hardware/r_opengl/r_opengl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/hardware/r_opengl/r_opengl.c b/src/hardware/r_opengl/r_opengl.c
index 6967bab74..064457c03 100644
--- a/src/hardware/r_opengl/r_opengl.c
+++ b/src/hardware/r_opengl/r_opengl.c
@@ -1301,8 +1301,12 @@ EXPORT void HWRAPI(DeleteTexture) (GLMipmap_t *pTexInfo)
 		{
 			if (head->next)
 				head->next->prev = head->prev;
+			else // no next -> tail is being deleted -> update TexCacheTail
+				TexCacheTail = head->prev;
 			if (head->prev)
 				head->prev->next = head->next;
+			else // no prev -> head is being deleted -> update TexCacheHead
+				TexCacheHead = head->next;
 			free(head);
 			break;
 		}