Merge "Handle failed usb/reads and writes correctly"
am: 6e28863442
Change-Id: I505676fe1a12f21cf9b006d1d417410616ba5053
diff --git a/fastboot/device/usb_client.cpp b/fastboot/device/usb_client.cpp
index fb51a90..511bd5c 100644
--- a/fastboot/device/usb_client.cpp
+++ b/fastboot/device/usb_client.cpp
@@ -257,7 +257,7 @@
auto bytes_to_read = std::min(len - bytes_read_total, kFbFfsNumBufs * kFbFfsBufSize);
auto bytes_read_now = handle_->read(handle_.get(), char_data, bytes_to_read);
if (bytes_read_now < 0) {
- return bytes_read_total;
+ return bytes_read_total == 0 ? -1 : bytes_read_total;
}
bytes_read_total += bytes_read_now;
char_data += bytes_read_now;
@@ -278,7 +278,7 @@
auto bytes_to_write = std::min(len - bytes_written_total, kFbFfsNumBufs * kFbFfsBufSize);
auto bytes_written_now = handle_->write(handle_.get(), data, bytes_to_write);
if (bytes_written_now < 0) {
- return bytes_written_total;
+ return bytes_written_total == 0 ? -1 : bytes_written_total;
}
bytes_written_total += bytes_written_now;
char_data += bytes_written_now;