xyz-modem: Properly abort/terminate transfer on error

Transfer termination tries to instruct sender that transfer was terminated.

Print error message and indicates aborted transfer in return value.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/cmd/load.c b/cmd/load.c
index e0c896b..549e563 100644 (file)
--- a/cmd/load.c
+++ b/cmd/load.c
@@ -978,6 +978,7 @@ static ulong load_serial_ymodem(ulong offset, int mode)
        res = xyzModem_stream_open(&info, &err);
        if (!res) {
 
+               err = 0;
                while ((res =
                        xyzModem_stream_read(ymodemBuf, 1024, &err)) > 0) {
                        store_addr = addr + offset;
@@ -990,6 +991,9 @@ static ulong load_serial_ymodem(ulong offset, int mode)
                                rc = flash_write((char *) ymodemBuf,
                                                  store_addr, res);
                                if (rc != 0) {
+                                       xyzModem_stream_terminate(true, &getcxmodem);
+                                       xyzModem_stream_close(&err);
+                                       printf("\n");
                                        flash_perror(rc);
                                        return (~0);
                                }
@@ -1001,12 +1005,20 @@ static ulong load_serial_ymodem(ulong offset, int mode)
                        }
 
                }
+               if (err) {
+                       xyzModem_stream_terminate((err == xyzModem_cancel) ? false : true, &getcxmodem);
+                       xyzModem_stream_close(&err);
+                       printf("\n%s\n", xyzModem_error(err));
+                       return (~0); /* Download aborted */
+               }
+
                if (IS_ENABLED(CONFIG_CMD_BOOTEFI))
                        efi_set_bootdev("Uart", "", "",
                                        map_sysmem(offset, 0), size);
 
        } else {
-               printf("%s\n", xyzModem_error(err));
+               printf("\n%s\n", xyzModem_error(err));
+               return (~0); /* Download aborted */
        }
 
        xyzModem_stream_terminate(false, &getcxmodem);