MonetDB: Jun2023 - Check that allocation succeeded.

[Sjoerd Mullender via checkin-list]

Changeset: 709b42ab5e6c for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/709b42ab5e6c
Modified Files:
        sql/backends/monet5/sql_statement.c
Branch: Jun2023
Log Message:

Check that allocation succeeded.


diffs (12 lines):

diff --git a/sql/backends/monet5/sql_statement.c 
b/sql/backends/monet5/sql_statement.c
--- a/sql/backends/monet5/sql_statement.c
+++ b/sql/backends/monet5/sql_statement.c
@@ -3036,7 +3036,7 @@ stmt_append(backend *be, stmt *c, stmt *
        MalBlkPtr mb = be->mb;
        InstrPtr q = NULL;
 
-       if (c->nr < 0 || a->nr < 0)
+       if (c == NULL || a == NULL || c->nr < 0 || a->nr < 0)
                return NULL;
        q = newStmt(mb, batRef, appendRef);
        q = pushArgument(mb, q, c->nr);
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