Commit 1e49f127 by lhchavez

Fix a possible null pointer dereference

This change fixes a possible null pointer dereference if anything inside
`git_commit_graph_writer_add_index_file` fails before the packfile being
valid.

https://scan6.coverity.com/reports.htm#v52218/p10377/fileInstanceId=122935896&defectInstanceId=32525576&mergedDefectId=1461634
parent c811fc36
......@@ -716,6 +716,7 @@ int git_commit_graph_writer_add_index_file(
goto cleanup;
cleanup:
if (p)
git_mwindow_put_pack(p);
git_odb_free(state.db);
return error;
......
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