From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:37725 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753265AbcJNKAH (ORCPT ); Fri, 14 Oct 2016 06:00:07 -0400 Subject: Patch "ALSA: ali5451: Fix out-of-bound position reporting" has been added to the 4.8-stable tree To: tiwai@suse.de, gregkh@linuxfoundation.org, mrkiko.rs@gmail.com Cc: , From: Date: Fri, 14 Oct 2016 12:00:15 +0200 Message-ID: <14764392151597@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ALSA: ali5451: Fix out-of-bound position reporting to the 4.8-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: alsa-ali5451-fix-out-of-bound-position-reporting.patch and it can be found in the queue-4.8 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From db68577966abc1aeae4ec597b3dcfa0d56e92041 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Wed, 21 Sep 2016 14:38:02 +0200 Subject: ALSA: ali5451: Fix out-of-bound position reporting From: Takashi Iwai commit db68577966abc1aeae4ec597b3dcfa0d56e92041 upstream. The pointer callbacks of ali5451 driver may return the value at the boundary occasionally, and it results in the kernel warning like snd_ali5451 0000:00:06.0: BUG: , pos = 16384, buffer size = 16384, period size = 1024 It seems that folding the position offset is enough for fixing the warning and no ill-effect has been seen by that. Reported-by: Enrico Mioso Tested-by: Enrico Mioso Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman --- sound/pci/ali5451/ali5451.c | 2 ++ 1 file changed, 2 insertions(+) --- a/sound/pci/ali5451/ali5451.c +++ b/sound/pci/ali5451/ali5451.c @@ -1408,6 +1408,7 @@ snd_ali_playback_pointer(struct snd_pcm_ spin_unlock(&codec->reg_lock); dev_dbg(codec->card->dev, "playback pointer returned cso=%xh.\n", cso); + cso %= runtime->buffer_size; return cso; } @@ -1428,6 +1429,7 @@ static snd_pcm_uframes_t snd_ali_pointer cso = inw(ALI_REG(codec, ALI_CSO_ALPHA_FMS + 2)); spin_unlock(&codec->reg_lock); + cso %= runtime->buffer_size; return cso; } Patches currently in stable-queue which might be from tiwai@suse.de are queue-4.8/alsa-ali5451-fix-out-of-bound-position-reporting.patch queue-4.8/alsa-usb-audio-extend-dragonfly-db-scale-quirk-to-cover-other-variants.patch queue-4.8/alsa-usb-line6-use-the-same-declaration-as-definition-in-header-for-midi-manufacturer-id.patch