SDL: Don't touch linked list entries that have been free'd.

icculus · icculus · commit 7ab41f0c94c6 · 2024-12-31T06:49:27.000-05:00
diff --git a/dirksimple_sdl.c b/dirksimple_sdl.c
@@ -149,8 +149,9 @@ static void SDLCALL audio_callback(void *userdata, Uint8 *stream, int len)
                 GPlayingWaves = next;
             }
             DirkSimple_free(pw);
+        } else {
+            prev = pw;
         }
-        prev = pw;
         pw = next;
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -149,8 +149,9 @@ static void SDLCALL audio_callback(void userdata, Uint8 stream, int len)`
`149`	`149`	`GPlayingWaves = next;`
`150`	`150`	`}`
`151`	`151`	`DirkSimple_free(pw);`
	`152`	`+ } else {`
	`153`	`+ prev = pw;`
`152`	`154`	`}`
`153`		`- prev = pw;`
`154`	`155`	`pw = next;`
`155`	`156`	`}`
`156`	`157`	`}`