client: fix null dentry crash on dump_cache

Dentries can be NULL!

Signed-off-by: Sage Weil <sage@inktank.com>

diff --git a/src/client/Client.cc b/src/client/Client.cc
index e9675bab3696b7d9b444c7b345e2769ce87ecfda..5ff34faa3dc1bd61f827107d3aaa58cac6fcaf2e 100644 (file)
--- a/src/client/Client.cc
+++ b/src/client/Client.cc
@@ -294,7 +294,8 @@ void Client::dump_inode(Formatter *f, Inode *in, set<Inode*>& did, bool disconne
        it->second->dump(f);
        f->close_section();
       }        
-      dump_inode(f, it->second->inode, did, false);
+      if (it->second->inode)
+       dump_inode(f, it->second->inode, did, false);
     }
   }
 }