From b05ec689d0192b925729b2446f7198d7e9303af2 Mon Sep 17 00:00:00 2001
From: Michael Davidsaver <mdavidsaver@gmail.com>
Date: Wed, 31 Jan 2018 08:42:26 -0800
Subject: [PATCH] pvget/pvinfo check for NULL channel

---
 pvtoolsSrc/pvget.cpp  | 2 ++
 pvtoolsSrc/pvinfo.cpp | 1 +
 2 files changed, 3 insertions(+)

diff --git a/pvtoolsSrc/pvget.cpp b/pvtoolsSrc/pvget.cpp
index ce98975..1757a8b 100644
--- a/pvtoolsSrc/pvget.cpp
+++ b/pvtoolsSrc/pvget.cpp
@@ -565,6 +565,8 @@ int main (int argc, char *argv[])
                 std::cerr<<"Provider "<<uri.protocol<<" can't create channel \""<<pvs[n]<<"\"\n";
                 return 1;
             }
+            if(!channel)
+                continue;
             chan_cache[pvs[n]] = channel;
         } else {
             channel = it->second;
diff --git a/pvtoolsSrc/pvinfo.cpp b/pvtoolsSrc/pvinfo.cpp
index 3a30dde..2fb5afa 100644
--- a/pvtoolsSrc/pvinfo.cpp
+++ b/pvtoolsSrc/pvinfo.cpp
@@ -190,6 +190,7 @@ int main (int argc, char *argv[])
         for (int n = 0; n < nPvs; n++)
         {
             Channel::shared_pointer channel = channels[n];
+            if(!channel) continue;
 
             TR1::shared_ptr<GetFieldRequesterImpl> getFieldRequesterImpl(new GetFieldRequesterImpl(channel));
             channel->getField(getFieldRequesterImpl, "");