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Date: Tue, 10 Aug 2021 19:29:56 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Takashi Iwai <tiwai@...e.de> Subject: [PATCH 5.10 062/135] ALSA: usb-audio: Fix superfluous autosuspend recovery From: Takashi Iwai <tiwai@...e.de> commit 66291b6adb66dd3bc96b0f594d88c2ff1300d95f upstream. The change to restore the autosuspend from the disabled state uses a wrong check: namely, it should have been the exact comparison of the quirk_type instead of the bitwise and (&). Otherwise it matches wrongly with the other quirk types. Although re-enabling the autosuspend for the already enabled device shouldn't matter much, it's better to fix the unbalanced call. Fixes: 9799110825db ("ALSA: usb-audio: Disable USB autosuspend properly in setup_disable_autosuspend()") Cc: <stable@...r.kernel.org> Link: https://lore.kernel.org/r/s5hr1flh9ov.wl-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@...e.de> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- sound/usb/card.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/sound/usb/card.c +++ b/sound/usb/card.c @@ -907,7 +907,7 @@ static void usb_audio_disconnect(struct } } - if (chip->quirk_type & QUIRK_SETUP_DISABLE_AUTOSUSPEND) + if (chip->quirk_type == QUIRK_SETUP_DISABLE_AUTOSUSPEND) usb_enable_autosuspend(interface_to_usbdev(intf)); chip->num_interfaces--;
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