| commit | b099b9693d23d035c77c218508e083484ff63024 | [log] [tgz] |
|---|---|---|
| author | Takashi Iwai <tiwai@suse.de> | Wed May 02 09:36:28 2018 +0200 |
| committer | Takashi Iwai <tiwai@suse.de> | Wed May 02 16:02:33 2018 +0200 |
| tree | e5146fb1601205061cf55e0f82d01cac5c513e47 | |
| parent | 964af639ad699404cbe36d0c1fc85970700e6107 [diff] |
ALSA: usb-audio: Avoid superfluous usb_set_interface() calls This is a preliminary change for the upcoming quirk implementation. Currently USB-audio driver tries to call usb_set_interface() whenever the format change with interface/altset modification happens. In this patch, the check is replaced with the comparison of cur_altsetting and the targeted altsetting pointer, so that the driver may skip the unnecessary function calls. Signed-off-by: Takashi Iwai <tiwai@suse.de>