[PATCH 4.5 66/87] Fix OpenSSH pty regression on close

4.5-stable review patch. If anyone has any objections, please let me know. -- From: Brian Bloniarz commit 0f40fbbcc34e093255a2b2d70b6b0fb48c3f39aa upstream. OpenSSH expects the (non-blocking) read() of pty master to return EAGAIN only if it has

[PATCH 4.5 66/87] Fix OpenSSH pty regression on close

4.5-stable review patch. If anyone has any objections, please let me know. -- From: Brian Bloniarz commit 0f40fbbcc34e093255a2b2d70b6b0fb48c3f39aa upstream. OpenSSH expects the (non-blocking) read() of pty master to return EAGAIN only if it has received all of the slave-side