Hi Mark, Curtis,
I am seeing a regression on -next where the soundcard on one of our
Tegra boards fails to initialise following a probe deferral. The bisect
points to the commit 78a24e10cd94420f1b4e2dc5923ae7109e2aaba1 ('ASoC:
soc-core: clear platform pointers on error') and reverting this on top
of -next fixes the problem.
Looking at the bootlog from the failure I see ...
tegra-snd-wm8903 sound: ASoC: failed to init link WM8903
tegra-snd-wm8903 sound: snd_soc_register_card failed (-517)
tegra30-i2s 70080400.i2s: DMA channels sourced from device 70080000.ahub
tegra-snd-wm8903 sound: ASoC: Both platform name/of_node are set for WM8903
tegra-snd-wm8903 sound: ASoC: failed to init link WM8903
tegra-snd-wm8903 sound: snd_soc_register_card failed (-22)
tegra-snd-wm8903: probe of sound failed with error -22
With the above change I see soc_cleanup_platform() is ever being called
when the probe is deferred and hence leads to the failure. Note that the
initial failure, "ASoC: failed to init link WM8903" occurs very early
in snd_soc_register_card() when initialising the prelinks.
The following fixes it, but I have not scrutinised the code to see if
there are other exit points that we need to handle.
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 93d316d5bf8e..6f66beb0c3ae 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2797,6 +2797,7 @@ int snd_soc_register_card(struct snd_soc_card *card)
ret = soc_init_dai_link(card, link);
if (ret) {
+ soc_cleanup_platform(card);
dev_err(card->dev, "ASoC: failed to init link %s\n",
link->name);
mutex_unlock(&client_mutex);
Cheers
Jon
--
nvpublic
