[alsa-devel] [PATCH] sound dapm: fix check for external widgets bug (based on linux-2.6.30.1)

[Rongrong Cao]

From: Rongrong Cao rrcao at ambarella.com

This patch is based on linux-2.6.30.1
In SOC DAPM layer of SOUND subsystem, when add signal route (in the function snd_soc_dapm_add_route() ), 
the original code has wrong logic when dapm layer check each widget whether an external one.

---------------------------------------------------------------------------------------------------------

--- linux-2.6.30.1/sound/soc/soc-dapm.c.orig    2009-07-06 19:48:43.000000000 +0800
+++ linux-2.6.30.1/sound/soc/soc-dapm.c 2009-07-06 19:03:15.000000000 +0800
@@ -983,8 +983,8 @@ static int snd_soc_dapm_add_route(struct
        if (wsink->id == snd_soc_dapm_input) {
                if (wsource->id == snd_soc_dapm_micbias ||
                        wsource->id == snd_soc_dapm_mic ||
-                       wsink->id == snd_soc_dapm_line ||
-                       wsink->id == snd_soc_dapm_output)
+                       wsource->id == snd_soc_dapm_line ||
+                       wsource->id == snd_soc_dapm_output)
                        wsink->ext = 1;
        }
        if (wsource->id == snd_soc_dapm_output) {

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Signed-off-by: Rongrong Cao rrcao at ambarella.com

********************
Best regards!
Allen (Rongrong) Cao
Ambarella Shanghai Ltd.
Tel:   (86-21) 50942311
Fax:  (86-21) 50942321




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