Fix uninitalized value in encode_coding_object

* src/coding.c (encode_coding_object): Also initialize
coding->src_pos and coding->src_pos_byte when NILP (src_object).
This avoids later use of uninitialized storage.

1 files changed, 5 insertions, 1 deletions

diff --git a/src/coding.c b/src/coding.c
index 9d1ebc8a4cb..1887560827c 100644
--- a/src/coding.c
+++ b/src/coding.c
@@ -8301,7 +8301,11 @@ encode_coding_object (struct coding_system *coding,
         }
     }
   else
-    code_conversion_save (0, 0);
+    {
+      code_conversion_save (0, 0);
+      coding->src_pos = from;
+      coding->src_pos_byte = from_byte;
+    }
 
   if (BUFFERP (dst_object))
     {