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| author | Takashi Iwai <tiwai@suse.de> | 2018-05-03 13:33:32 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-05-03 13:35:19 +0300 |
| commit | 8c558076c740e8009a96c6fdc3d4245dde62be77 (patch) | |
| tree | 361e87f1a346bff4a243a2538fb109665978317b /sound/usb/mixer_quirks.c | |
| parent | 207459a2804a64d0f0f05c8aba04e0b0844661f2 (diff) | |
| download | linux-8c558076c740e8009a96c6fdc3d4245dde62be77.tar.xz | |
ALSA: usb-audio: Clean up mixer element list traverse
Introduce a new macro for iterating over mixer element list for
avoiding the open codes in many places. Also the open-coded
container_of() and the forced cast to struct usb_mixer_elem_info are
replaced with another simple macro, too.
No functional changes but just readability improvement.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/mixer_quirks.c')
| -rw-r--r-- | sound/usb/mixer_quirks.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c index 4377374affd3..1b94387e18b6 100644 --- a/sound/usb/mixer_quirks.c +++ b/sound/usb/mixer_quirks.c @@ -1172,7 +1172,7 @@ void snd_emuusb_set_samplerate(struct snd_usb_audio *chip, int unitid = 12; /* SamleRate ExtensionUnit ID */ list_for_each_entry(mixer, &chip->mixer_list, list) { - cval = (struct usb_mixer_elem_info *)mixer->id_elems[unitid]; + cval = mixer_elem_list_to_info(mixer->id_elems[unitid]); if (cval) { snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR, cval->control << 8, |