diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index 70cd4b0b873..a43f1e1bc18 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,8 @@
+2016-05-05  Yao Qi  <yao.qi@linaro.org>
+
+	* linux-arm-low.c (get_next_pcs_read_memory_unsigned_integer):
+	Initialize res to zero.
+
 2016-05-05  Yao Qi  <yao.qi@linaro.org>
 
 	* linux-arm-low.c (arm_sigreturn_next_pc): Change type of cpsr
diff --git a/gdb/gdbserver/linux-arm-low.c b/gdb/gdbserver/linux-arm-low.c
index 952ec261088..2ffda8731d1 100644
--- a/gdb/gdbserver/linux-arm-low.c
+++ b/gdb/gdbserver/linux-arm-low.c
@@ -262,6 +262,7 @@ get_next_pcs_read_memory_unsigned_integer (CORE_ADDR memaddr,
 {
   ULONGEST res;
 
+  res = 0;
   (*the_target->read_memory) (memaddr, (unsigned char *) &res, len);
   return res;
 }