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-rw-r--r--source/fitz/zip.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/source/fitz/zip.c b/source/fitz/zip.c
index 599d2954..95f1bd03 100644
--- a/source/fitz/zip.c
+++ b/source/fitz/zip.c
@@ -87,6 +87,8 @@ fz_close_zip_writer(fz_context *ctx, fz_zip_writer *zip)
void
fz_drop_zip_writer(fz_context *ctx, fz_zip_writer *zip)
{
+ if (!zip)
+ return;
if (!zip->closed)
fz_warn(ctx, "dropping unclosed zip writer");
fz_drop_output(ctx, zip->output);