Takashi Iwai e096b3d0f0 ALSA: vmaster: Propagate slave error
[ Upstream commit 2e2c177ca84aff092c3c96714b0f6a12900f3946 ]

In slave_update() of vmaster code ignores the error from the slave
get() callback and copies the values.  It's not only about the missing
error code but also that this may potentially lead to a leak of
uninitialized variables when the slave get() don't clear them.

This patch fixes slave_update() not to copy the potentially
uninitialized values when an error is returned from the slave get()
callback, and to propagate the error value properly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:50:48 +02:00
..
2016-10-07 20:19:31 -07:00
2018-05-30 07:50:48 +02:00
2018-01-02 20:35:08 +01:00
2016-10-07 20:19:31 -07:00
2016-01-20 09:59:27 +01:00