On Wed, Sep 04, 2019 at 05:22:32PM +0900, Austin Kim wrote:
> If the kmalloc() return NULL, the NULL pointer dereference will occur.
> new_ts->ts = ts;
>
> Add exception check after the call to kmalloc() is made.
>
> Signed-off-by: Austin Kim <austindh.kim@xxxxxxxxx>
> ---
> drivers/staging/media/meson/vdec/vdec_helpers.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/drivers/staging/media/meson/vdec/vdec_helpers.c b/drivers/staging/media/meson/vdec/vdec_helpers.c
> index f16948b..e7e56d5 100644
> --- a/drivers/staging/media/meson/vdec/vdec_helpers.c
> +++ b/drivers/staging/media/meson/vdec/vdec_helpers.c
> @@ -206,6 +206,10 @@ void amvdec_add_ts_reorder(struct amvdec_session *sess, u64 ts, u32 offset)
> unsigned long flags;
>
> new_ts = kmalloc(sizeof(*new_ts), GFP_KERNEL);
> + if (!new_ts) {
> + dev_err(sess->core->dev, "Failed to kmalloc()\n");
Did you run this through checkpatch? I think it will say that this line
is not ok.
> + return;
Shouldn't you return an -ENOMEM error somehow?
thanks,
greg k-h
