check the returns from isc_task_beginexclusive

diff --git a/lib/dns/adb.c b/lib/dns/adb.c
index ad60539dc8cd8a08ef381e94a7004ba048ab7077..8028b692d4ac22e94c39410db5072941672dcd37 100644 (file)
--- a/lib/dns/adb.c
+++ b/lib/dns/adb.c
@@ -518,7 +518,9 @@ grow_entries(isc_task_t *task, isc_event_t *ev) {
 
        isc_event_free(&ev);
 
-       isc_task_beginexclusive(task);
+       result = isc_task_beginexclusive(task);
+       if (result != ISC_R_SUCCESS)
+               goto check_exit;
 
        i = 0;
        while (nbuckets[i] != 0 && adb->nentries >= nbuckets[i])
@@ -646,6 +648,7 @@ grow_entries(isc_task_t *task, isc_event_t *ev) {
  done:
        isc_task_endexclusive(task);
 
+ check_exit:
        LOCK(&adb->lock);
        if (dec_adb_irefcnt(adb))
                check_exit(adb);
@@ -670,7 +673,9 @@ grow_names(isc_task_t *task, isc_event_t *ev) {
 
        isc_event_free(&ev);
 
-       isc_task_beginexclusive(task);
+       result = isc_task_beginexclusive(task);
+       if (result != ISC_R_SUCCESS)
+               goto check_exit;
 
        i = 0;
        while (nbuckets[i] != 0 && adb->nnames >= nbuckets[i])
@@ -794,6 +799,7 @@ grow_names(isc_task_t *task, isc_event_t *ev) {
  done:
        isc_task_endexclusive(task);
 
+ check_exit:
        LOCK(&adb->lock);
        if (dec_adb_irefcnt(adb))
                check_exit(adb);