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Takashi Iwai 65ca89c2b1 ASoC: intel: atom: Fix breakage for PCM buffer address setup 
The commit 2e6b836312 ("ASoC: intel: atom: Fix reference to PCM
buffer address") changed the reference of PCM buffer address to
substream->runtime->dma_addr as the buffer address may change
dynamically.  However, I forgot that the dma_addr field is still not
set up for the CONTINUOUS buffer type (that this driver uses) yet in
5.14 and earlier kernels, and it resulted in garbage I/O.  The problem
will be fixed in 5.15, but we need to address it quickly for now.

The fix is to deduce the address again from the DMA pointer with
virt_to_phys(), but from the right one, substream->runtime->dma_area.

Fixes: 2e6b836312 ("ASoC: intel: atom: Fix reference to PCM buffer address")
Reported-and-tested-by: Hans de Goede <hdegoede@redhat.com>
Cc: <stable@vger.kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/2048c6aa-2187-46bd-6772-36a4fb3c5aeb@redhat.com
Link: https://lore.kernel.org/r/20210819152945.8510-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-08-19 17:57:51 +02:00
arch Two fixes: 2021-07-11 11:17:57 -07:00
block
certs
crypto
Documentation ASoC: Fixes for v5.14 2021-07-21 19:48:09 +02:00
drivers Two fixes: 2021-07-11 11:17:57 -07:00
fs 13 cifs/smb3 fixes. Most are to address minor issues pointed out by Coverity. Also includes a packet signing enhancement and mount improvement 2021-07-10 12:04:58 -07:00
include ASoC: Fixes for v5.14 2021-07-21 19:48:09 +02:00
init Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
ipc
kernel Two fixes: 2021-07-11 11:17:57 -07:00
lib mm/page_alloc: Revert pahole zero-sized workaround 2021-07-10 16:09:39 -07:00
LICENSES
mm mm/rmap: try_to_migrate() skip zone_device !device_private 2021-07-11 15:05:15 -07:00
net
samples
scripts Kbuild updates for v5.14 2021-07-10 11:01:38 -07:00
security
sound ASoC: intel: atom: Fix breakage for PCM buffer address setup 2021-08-19 17:57:51 +02:00
tools perf tools changes for v5.14: 2nd batch 2021-07-11 10:54:24 -07:00
usr
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MAINTAINERS ASoC: Fixes for v5.14 2021-08-06 17:00:51 +02:00
Makefile Linux 5.14-rc1 2021-07-11 15:07:40 -07:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.