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windows: Always check return value of GetOverlappedResult().

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Martin Ling 2015-05-07 09:19:47 +01:00 committed by Uwe Hermann
parent bbe566fe1c
commit 27911925c1
1 changed files with 4 additions and 2 deletions
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6
serialport.c
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@ -763,7 +763,8 @@ SP_API enum sp_return sp_blocking_write(struct sp_port *port, const void *buf,
RETURN_INT(count); RETURN_INT(count);
} else if (GetLastError() == ERROR_IO_PENDING) { } else if (GetLastError() == ERROR_IO_PENDING) {
DEBUG("Waiting for write to complete"); DEBUG("Waiting for write to complete");
GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE); if (GetOverlappedResult(port->hdl, &port->write_ovl, &bytes_written, TRUE) == 0)
RETURN_FAIL("GetOverlappedResult() failed");
DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count); DEBUG_FMT("Write completed, %d/%d bytes written", bytes_written, count);
RETURN_INT(bytes_written); RETURN_INT(bytes_written);
} else { } else {
@ -973,7 +974,8 @@ SP_API enum sp_return sp_blocking_read(struct sp_port *port, void *buf,
bytes_read = count; bytes_read = count;
} else if (GetLastError() == ERROR_IO_PENDING) { } else if (GetLastError() == ERROR_IO_PENDING) {
DEBUG("Waiting for read to complete"); DEBUG("Waiting for read to complete");
GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE); if (GetOverlappedResult(port->hdl, &port->read_ovl, &bytes_read, TRUE) == 0)
RETURN_FAIL("GetOverlappedResult() failed");
DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count); DEBUG_FMT("Read completed, %d/%d bytes read", bytes_read, count);
} else { } else {
RETURN_FAIL("ReadFile() failed"); RETURN_FAIL("ReadFile() failed");