[PATCH 0/4] ALSA: usb-audio: More EP-related fixes

This is a series of small fixes for USB-audio endpoint management after the latest change to split prepare/hw_params.

Takashi

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Takashi Iwai (4): ALSA: usb-audio: Avoid unnecessary interface change at EP close ALSA: usb-audio: Apply mutex around snd_usb_endpoint_set_params() ALSA: usb-audio: Correct the return code from snd_usb_endpoint_set_params() ALSA: usb-audio: Avoid superfluous endpoint setup

sound/usb/card.h | 3 ++- sound/usb/endpoint.c | 32 +++++++++++++++++++++++++------- 2 files changed, 27 insertions(+), 8 deletions(-)