Patch "ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check" has been added to the 3.14-stable tree
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This is a note to let you know that I've just added the patch titled
ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
to the 3.14-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-rawmidi-remove-kernel-warning-for-null-user-space-buffer-check.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.
Quoted 1 line
From
cc85f7a634cfaf9f0713c6aa06d08817424db37aMon Sep 17 00:00:00 2001
From: Takashi Iwai <[email protected]>
Date: Mon, 1 Feb 2016 12:04:55 +0100
Subject: ALSA: rawmidi: Remove kernel WARNING for NULL user-space buffer check
From: Takashi Iwai <[email protected]>
commit cc85f7a634cfaf9f0713c6aa06d08817424db37a upstream.
NULL user-space buffer can be passed even in a normal path, thus it's not good to spew a kernel warning with stack trace at each time. Just drop snd_BUG_ON() macro usage there.
--- sound/core/rawmidi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
sound/core/rawmidi.c +1 -1
@@ -1162,7 +1162,7 @@ static long snd_rawmidi_kernel_write1(stlong count1, result;struct snd_rawmidi_runtime *runtime = substream->runtime; -if (snd_BUG_ON (!kernelbuf && !userbuf)) +if (!kernelbuf && !userbuf)return -EINVAL ;if (snd_BUG_ON (!runtime->buffer))return -EINVAL ;
Patches currently in stable-queue which might be from [email protected] are
queue-3.14/alsa-seq-fix-race-at-closing-in-virmidi-driver.patch queue-3.14/alsa-rawmidi-remove-kernel-warning-for-null-user-space-buffer-check.patch queue-3.14/alsa-hda-fix-static-checker-warning-in-patch_hdmi.c.patch queue-3.14/alsa-seq-fix-lockdep-warnings-due-to-double-mutex-locks.patch queue-3.14/alsa-usb-audio-fix-teac-ud-501-ud-503-nt-503-usb-delay.patch queue-3.14/alsa-timer-fix-wrong-instance-passed-to-slave-callbacks.patch queue-3.14/alsa-compress-disable-get_codec_caps-ioctl-for-some-architectures.patch queue-3.14/alsa-hda-fix-speaker-output-from-vaio-aio-machines.patch queue-3.14/alsa-dummy-implement-timer-backend-switching-more-safely.patch queue-3.14/alsa-dummy-disable-switching-timer-backend-via-sysfs.patch queue-3.14/alsa-seq-fix-incorrect-sanity-check-at-snd_seq_oss_synth_cleanup.patch queue-3.14/alsa-seq-fix-yet-another-races-among-alsa-timer-accesses.patch queue-3.14/alsa-usb-audio-avoid-freeing-umidi-object-twice.patch queue-3.14/alsa-hda-add-fixup-for-mac-mini-7-1-model.patch queue-3.14/alsa-timer-fix-leftover-link-at-closing.patch queue-3.14/alsa-rawmidi-fix-race-at-copying-updating-the-position.patch queue-3.14/alsa-pcm-fix-potential-deadlock-in-oss-emulation.patch queue-3.14/alsa-timer-fix-link-corruption-due-to-double-start-or-stop.patch