[list] Add sanity checks after list-adding functions

Signed-off-by: Michael Brown <mcb30@ipxe.org>

diff --git a/src/include/ipxe/list.h b/src/include/ipxe/list.h
index 0d0973077e88efc803f6b40dbe7f160e21172453..581ec9806101900cd04adbf793725e6dc9f80217 100644 (file)
--- a/src/include/ipxe/list.h
+++ b/src/include/ipxe/list.h
@@ -69,6 +69,8 @@ struct list_head {
 #define list_add( new, head ) do {                             \
        list_check ( (head) );                                  \
        extern_list_add ( (new), (head) );                      \
+       list_check ( (head) );                                  \
+       list_check ( (new) );                                   \
        } while ( 0 )
 static inline void inline_list_add ( struct list_head *new,
                                     struct list_head *head ) {
@@ -91,6 +93,8 @@ extern void extern_list_add ( struct list_head *new,
 #define list_add_tail( new, head ) do {                                \
        list_check ( (head) );                                  \
        extern_list_add_tail ( (new), (head) );                 \
+       list_check ( (head) );                                  \
+       list_check ( (new) );                                   \
        } while ( 0 )
 static inline void inline_list_add_tail ( struct list_head *new,
                                          struct list_head *head ) {