include/denc: initialize local variable

to silence warning like:

../src/include/denc.h:834:27: warning: variable 'len' is uninitialized when used here [-Wuninitialized]
    v.push_back(p.get_ptr(len));
                          ^~~

Signed-off-by: Kefu Chai <tchaikov@gmail.com>

diff --git a/src/include/denc.h b/src/include/denc.h
index 71db1003ace89ad93cd7b07b51f61919a17469e2..6dc661d3b2f190dc7a332ce23e3a3713f3f190c7 100644 (file)
--- a/src/include/denc.h
+++ b/src/include/denc.h
@@ -843,7 +843,7 @@ struct denc_traits<ceph::buffer::list> {
     p.append(v);
   }
   static void decode(ceph::buffer::list& v, ceph::buffer::ptr::const_iterator& p, uint64_t f=0) {
-    uint32_t len;
+    uint32_t len = 0;
     denc(len, p);
     v.clear();
     v.push_back(p.get_ptr(len));