Hi Zhenhua,
> ---
> gatchat/gatppp.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/gatchat/gatppp.c b/gatchat/gatppp.c
> index 1d41ded..d9b1627 100644
> --- a/gatchat/gatppp.c
> +++ b/gatchat/gatppp.c
> @@ -446,6 +446,9 @@ void g_at_ppp_unref(GAtPPP *ppp)
> {
> gboolean is_zero;
>
> + if (ppp == NULL)
> + return;
> +
> is_zero = g_atomic_int_dec_and_test(&ppp->ref_count);
>
> if (is_zero == FALSE)
since we have been safe-guarding this in other unref functions as well,
I also applied this patch.
In general the calling code is doing something wrong here if it tries to
unref a NULL pointer.
Regards
Marcel
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