Add missing check for malloc failure in plpgsql_extra_checks_check_hook().

Per report from Andreas Seltenreich.  Back-patch to affected versions.

Report: <874m8nn0hv.fsf@elite.ansel.ydns.eu>

diff --git a/src/pl/plpgsql/src/pl_handler.c b/src/pl/plpgsql/src/pl_handler.c
index f5238d6cadc2e72c465fa5e68af0f014f0294791..e831733fa4a187daee207d7f7baec802968c72a3 100644 (file)
--- a/src/pl/plpgsql/src/pl_handler.c
+++ b/src/pl/plpgsql/src/pl_handler.c
@@ -108,6 +108,8 @@ plpgsql_extra_checks_check_hook(char **newvalue, void **extra, GucSource source)
        }
 
        myextra = (int *) malloc(sizeof(int));
+       if (!myextra)
+               return false;
        *myextra = extrachecks;
        *extra = (void *) myextra;