This is a note to let you know that I've just added the patch titled
ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
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-au88x0-fix-calculation-in-vortex_wtdma_bufshift.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 <stable@xxxxxxxxxxxxxxx> know about it.
>From 62db7152c924e4c060e42b34a69cd39658e8a0dc Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@xxxxxxx>
Date: Wed, 29 Jun 2016 15:23:08 +0200
Subject: ALSA: au88x0: Fix calculation in vortex_wtdma_bufshift()
From: Takashi Iwai <tiwai@xxxxxxx>
commit 62db7152c924e4c060e42b34a69cd39658e8a0dc upstream.
vortex_wtdma_bufshift() function does calculate the page index
wrongly, first masking then shift, which always results in zero.
The proper computation is to first shift, then mask.
Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
sound/pci/au88x0/au88x0_core.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
--- a/sound/pci/au88x0/au88x0_core.c
+++ b/sound/pci/au88x0/au88x0_core.c
@@ -1442,9 +1442,8 @@ static int vortex_wtdma_bufshift(vortex_
int page, p, pp, delta, i;
page =
- (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2)) &
- WT_SUBBUF_MASK)
- >> WT_SUBBUF_SHIFT;
+ (hwread(vortex->mmio, VORTEX_WTDMA_STAT + (wtdma << 2))
+ >> WT_SUBBUF_SHIFT) & WT_SUBBUF_MASK;
if (dma->nr_periods >= 4)
delta = (page - dma->period_real) & 3;
else {
Patches currently in stable-queue which might be from tiwai@xxxxxxx are
queue-3.14/alsa-ctl-stop-notification-after-disconnection.patch
queue-3.14/alsa-dummy-fix-a-use-after-free-at-closing.patch
queue-3.14/alsa-au88x0-fix-calculation-in-vortex_wtdma_bufshift.patch
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