Remember to end inflating

src/w_wad.c

@@ -1327,8 +1327,9 @@ size_t W_ReadLumpHeaderPwad(UINT16 wad, UINT16 lump, void *dest, size_t size, si
 				{
 					size = 0;
 					zerr(zErr);
-					(void)inflateEnd(&strm);
 				}
+
+				(void)inflateEnd(&strm);
 			}
 			else
 			{