From 6acce40a28b4f74806e1928ec6bdbe2d9da43b2c Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@cryptomilk.org>
Date: Mon, 8 Oct 2012 19:47:46 +0200
Subject: [PATCH] scp: Check return value of ssh_channel_poll.

Found by Coverity.
---
 src/scp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/scp.c b/src/scp.c
index a2efa321..9be5744c 100644
--- a/src/scp.c
+++ b/src/scp.c
@@ -419,7 +419,11 @@ int ssh_scp_write(ssh_scp scp, const void *buffer, size_t len){
   if(scp->processed + len > scp->filelen)
     len = (size_t) (scp->filelen - scp->processed);
   /* hack to avoid waiting for window change */
-  ssh_channel_poll(scp->channel,0);
+  r = ssh_channel_poll(scp->channel, 0);
+  if (r == SSH_ERROR) {
+      scp->state = SSH_SCP_ERROR;
+      return SSH_ERROR;
+  }
   w=ssh_channel_write(scp->channel,buffer,len);
   if(w != SSH_ERROR)
     scp->processed += w;