tree ad1c0f8e923b3f4a6133d76572e6fcfbd1271019
parent 0f4ea85748bfcd3c64910bae4ff18f94849ae3f8
author Takashi Iwai <tiwai@suse.de> 1483528755 +0100
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1511252605 +0100

ALSA: vx: Fix possible transfer overflow


[ Upstream commit 874e1f6fad9a5184b67f4cee37c1335cd2cc5677 ]

The pseudo DMA transfer codes in VX222 and VX-pocket driver have a
slight bug where they check the buffer boundary wrongly, and may
overflow.  Also, the zero sample count might be handled badly for the
playback (although it shouldn't happen in theory).  This patch
addresses these issues.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=141541
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>