[PATCH 1/3] Cygwin: dps: Fix a bug that read() could not return -1 on error.

[Takashi Yano]

---
 winsup/cygwin/fhandler/dsp.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/fhandler/dsp.cc b/winsup/cygwin/fhandler/dsp.cc
index 8e51a51c5..e872aa08c 100644
--- a/winsup/cygwin/fhandler/dsp.cc
+++ b/winsup/cygwin/fhandler/dsp.cc
@@ -1192,7 +1192,9 @@ fhandler_dev_dsp::_read (void *ptr, size_t& len)
       return;
     }
 
-  audio_in_->read ((char *)ptr, (int&)len);
+  int res = len;
+  audio_in_->read ((char *)ptr, res);
+  len = (size_t)res;
 }
 
 void
-- 
2.39.0