plugins: imap-filter-sieve: Fixed segfault occurring at cleanup.

Caused by cherry-picking for master to v2.2. The str_free() function does not accept NULL in v2.2.
dovecot · May 22, 2018 · 605448d · 605448d
1 parent d3557a3
commit 605448d
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/plugins/imap-filter-sieve/imap-filter-sieve.c b/src/plugins/imap-filter-sieve/imap-filter-sieve.c
@@ -248,7 +248,8 @@ void imap_filter_sieve_context_free(struct imap_filter_sieve_context **_sctx)
 			sieve_script_unref(&scripts[i].script);
 	}
 
-	str_free(&sctx->errors);
+	if (sctx->errors != NULL)
+		str_free(&sctx->errors);
 }
 
 /*