Clean up frdataset in resume_dslookup() on shutdown

When resume_dslookup() receives ISC_R_SHUTTINGDOWN or ISC_R_CANCELED,
frdataset (fctx->nsrrset) was not disassociated.  While fctx__destroy()
eventually cleans it up, leaving it associated keeps the underlying DB
node referenced longer than necessary.

diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index ab4344d74aaae3819dfa0b67749f7f642bb3becd..11a57ca681b53cc45e302d0eed99c71c7f23d131 100644 (file)
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -7095,6 +7095,7 @@ resume_dslookup(void *arg) {
 
        case ISC_R_SHUTTINGDOWN:
        case ISC_R_CANCELED:
+               dns_rdataset_cleanup(frdataset);
                goto cleanup;
 
        default: