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* [newlib-cygwin] Cygwin: dps: Fix a bug that read() could not return -1 on error.
@ 2023-09-05  9:30 Takashi Yano
  0 siblings, 0 replies; only message in thread
From: Takashi Yano @ 2023-09-05  9:30 UTC (permalink / raw)
  To: cygwin-cvs

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=2654a5ba76de97f5211aa033fb1c7223a127e1b9

commit 2654a5ba76de97f5211aa033fb1c7223a127e1b9
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date:   Tue Sep 5 16:59:51 2023 +0900

    Cygwin: dps: Fix a bug that read() could not return -1 on error.

Diff:
---
 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

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