diff options
| author | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-10-05 10:51:01 -0400 |
|---|---|---|
| committer | Donald Sharp <sharpd@cumulusnetworks.com> | 2017-10-05 10:53:13 -0400 |
| commit | affe9e99831408960b8b6f8477506ed2874a05dd (patch) | |
| tree | a6f2f7a898fad5fcdc3f74b233095b6e8f6a2b46 /pimd/pim_hello.c | |
| parent | ad183f047cab21576a42a9da0c4ed94cd1391005 (diff) | |
*: Convert list_delete(struct list *) to ** to allow nulling
Convert the list_delete(struct list *) function to use
struct list **. This is to allow the list pointer to be nulled.
I keep running into uses of this list_delete function where we
forget to set the returned pointer to NULL and attempt to use
it and then experience a crash, usually after the developer
has long since left the building.
Let's make the api explicit in it setting the list pointer
to null.
Cynical Prediction: This code will expose a attempt
to use the NULL'ed list pointer in some obscure bit
of code.
Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
Diffstat (limited to 'pimd/pim_hello.c')
| -rw-r--r-- | pimd/pim_hello.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/pimd/pim_hello.c b/pimd/pim_hello.c index 138a110d3a..08a1432bb0 100644 --- a/pimd/pim_hello.c +++ b/pimd/pim_hello.c @@ -125,9 +125,9 @@ static void tlv_trace_list(const char *label, const char *tlv_name, } } -#define FREE_ADDR_LIST \ - if (hello_option_addr_list) { \ - list_delete(hello_option_addr_list); \ +#define FREE_ADDR_LIST \ + if (hello_option_addr_list) { \ + list_delete_and_null(&hello_option_addr_list); \ } #define FREE_ADDR_LIST_THEN_RETURN(code) \ |