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ALSA: core: memalloc: add page alignment for iram
authorRobin Gong <yibin.gong@nxp.com>
Thu, 17 Dec 2020 16:15:47 +0000 (00:15 +0800)
committerTakashi Iwai <tiwai@suse.de>
Thu, 17 Dec 2020 09:38:12 +0000 (10:38 +0100)
commit74c64efa1557fef731b59eb813f115436d18078e
tree3d684617f0514a293ec8e1b05e599eaf47b034cftree | snapshot
parent150927c3674d7db4dd51a7269e01423c8c78e53bcommit | diff
ALSA: core: memalloc: add page alignment for iram

Since mmap for userspace is based on page alignment, add page alignment
for iram alloc from pool, otherwise, some good data located in the same
page of dmab->area maybe touched wrongly by userspace like pulseaudio.

Signed-off-by: Robin Gong <yibin.gong@nxp.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/1608221747-3474-1-git-send-email-yibin.gong@nxp.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/core/memalloc.c diff | blob | history
Domain: System / Kernel;