From 28735af3f59af8388ff5317f1faa3cf532af5dcf Mon Sep 17 00:00:00 2001 From: KaiChieh Chuang Date: Mon, 5 Feb 2018 13:00:00 +0800 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- sound/soc/soc-dapm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index a10b21cfc31e..ee6d9d9a3c5e 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -2026,7 +2026,7 @@ static ssize_t dapm_widget_power_read_file(struct file *file, snd_soc_dapm_for_each_direction(dir) { rdir = SND_SOC_DAPM_DIR_REVERSE(dir); snd_soc_dapm_widget_for_each_path(w, dir, p) { - if (p->connected && !p->connected(w, p->node[rdir])) + if (p->connected && !p->connected(p->source, p->sink)) continue; if (!p->connect) -- 2.30.2