From 8ce1cbd6ce0b1bda0c980c64fee4c1e1378355f1 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Wed, 22 Jan 2020 20:07:52 +0100 Subject: ASoC: topology: fix soc_tplg_fe_link_create() - link->dobj initialization order The code which checks the return value for snd_soc_add_dai_link() call in soc_tplg_fe_link_create() moved the snd_soc_add_dai_link() call before link->dobj members initialization. While it does not affect the latest kernels, the old soc-core.c code in the stable kernels is affected. The snd_soc_add_dai_link() function uses the link->dobj.type member to check, if the link structure is valid. Reorder the link->dobj initialization to make things work again. It's harmless for the recent code (and the structure should be properly initialized before other calls anyway). The problem is in stable linux-5.4.y since version 5.4.11 when the upstream commit 76d270364932 was applied. Fixes: 76d270364932 ("ASoC: topology: Check return value for snd_soc_add_dai_link()") Cc: Dragos Tarcatu Cc: Pierre-Louis Bossart Cc: Ranjani Sridharan Cc: Mark Brown Cc: Signed-off-by: Jaroslav Kysela Link: https://lore.kernel.org/r/20200122190752.3081016-1-perex@perex.cz Signed-off-by: Mark Brown --- sound/soc/soc-topology.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'sound') diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 92e4f4d08bfa..4e1fe623c390 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -1906,6 +1906,10 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg, link->num_codecs = 1; link->num_platforms = 1; + link->dobj.index = tplg->index; + link->dobj.ops = tplg->ops; + link->dobj.type = SND_SOC_DOBJ_DAI_LINK; + if (strlen(pcm->pcm_name)) { link->name = kstrdup(pcm->pcm_name, GFP_KERNEL); link->stream_name = kstrdup(pcm->pcm_name, GFP_KERNEL); @@ -1942,9 +1946,6 @@ static int soc_tplg_fe_link_create(struct soc_tplg *tplg, goto err; } - link->dobj.index = tplg->index; - link->dobj.ops = tplg->ops; - link->dobj.type = SND_SOC_DOBJ_DAI_LINK; list_add(&link->dobj.list, &tplg->comp->dobj_list); return 0; -- cgit