M CHANGES → CHANGES

@@ -16,6 +16,7 @@ - GBA Video: Fix mode 2 out-of-bounds VRAM crash
  - GBA Video: Fix regression adjusting brightness of backdrop
  - DS GX: Properly reject invalid commands
  - DS: Fix leaking BIOS and firmware filehandles
+ - DS: Fix freeing memory for partial BIOS on load failure
 Misc:
  - DS GX: Clean up and unify texture mapping
  - DS Core: Add symbol loading

M src/ds/ds.c → src/ds/ds.c

@@ -597,7 +597,11 @@ ds->memory.bios9 = data;
 		mLOG(DS, INFO, "Official DS ARM9 BIOS detected");
 	} else {
 		mLOG(DS, WARN, "BIOS checksum incorrect");
-		vf->unmap(vf, data, size);
+		if (size == 0x1000) {
+			free(data);
+		} else {
+			vf->unmap(vf, data, size);
+		}
 		return false;
 	}
 	return true;