move usb_close to usbtmc, fix memory leak

[rigol] / commands.c

diff --git a/commands.c b/commands.c
index 646d3dec8d6cba04e646f72e12257f37e8f3e425..75e76d03d65f2a4a2b4095de2ca49233f42811da 100644 (file)
--- a/commands.c
+++ b/commands.c
@@ -220,7 +220,7 @@ void do_display_screen(struct usb_dev_handle *sc)
                                imglen -= ret;
                        }
                        close(pipefd[1]);
+                       free(png);
                        break;
        }
 }
-