]> git.baikalelectronics.ru Git - kernel.git/commit
ASoC: dapm: fix debugfs read using path->connected
authorKaiChieh Chuang <kaichieh.chuang@mediatek.com>
Mon, 5 Feb 2018 05:00:00 +0000 (13:00 +0800)
committerMark Brown <broonie@kernel.org>
Wed, 7 Feb 2018 11:15:26 +0000 (11:15 +0000)
commit920e7320898fe7e402beba28ac6072b0cde34388
tree5716acd7cd003434a607d96b9831df8de0612533
parentfc34a8d7a6e80eb2c2304f3fb1526e012599ae42
ASoC: dapm: fix debugfs read using path->connected

This fix a bug in dapm_widget_power_read_file(),
where it may sent opposite order of source/sink widget
into the p->connected().

for example,
static int connected_check(source, sink);
{"w_sink", NULL, "w_source", connected_check}

the dapm_widget_power_read_file() will query p->connected()
in following case
p->conneted("w_source", "w_sink")
p->conneted("w_sink", "w_source")
we should avoid the last case, since it's the wrong order (source/sink)
as declared in snd_soc_dapm_route.

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/soc-dapm.c