On Mon, 21 Dec 2015 16:55:39 +0100,
Geliang Tang wrote:
>
> For better readability, use list_for_each_entry_continue_reverse()
> in have_dup_chmap().
>
> Signed-off-by: Geliang Tang <geliangtang@xxxxxxx>
Applied, thanks.
Takashi
> ---
> sound/usb/stream.c | 6 ++----
> 1 file changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/sound/usb/stream.c b/sound/usb/stream.c
> index 8ee14f2..c4dc577 100644
> --- a/sound/usb/stream.c
> +++ b/sound/usb/stream.c
> @@ -125,11 +125,9 @@ static int usb_chmap_ctl_info(struct snd_kcontrol *kcontrol,
> static bool have_dup_chmap(struct snd_usb_substream *subs,
> struct audioformat *fp)
> {
> - struct list_head *p;
> + struct audioformat *prev = fp;
>
> - for (p = fp->list.prev; p != &subs->fmt_list; p = p->prev) {
> - struct audioformat *prev;
> - prev = list_entry(p, struct audioformat, list);
> + list_for_each_entry_continue_reverse(prev, &subs->fmt_list, list) {
> if (prev->chmap &&
> !memcmp(prev->chmap, fp->chmap, sizeof(*fp->chmap)))
> return true;
> --
> 2.5.0
>
>
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