Avoid uninitialized access by gzclose_w().

(cherry picked from commit c901a34c92c4aa74028f541a9773df726ce2b769)

 Conflicts:
	deflate.c

1 files changed, 1 insertions, 0 deletions

diff --git a/gzwrite.c b/gzwrite.c
index 58b5897..8c80781 100644
--- a/gzwrite.c
+++ b/gzwrite.c
@@ -45,6 +45,7 @@ local int gz_init(gz_statep state) {
             gz_error(state, Z_MEM_ERROR, "out of memory");
             return -1;
         }
+        strm->next_in = NULL;
     }
 
     /* mark state as initialized */