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| author |   Jaroslav Kysela <perex@perex.cz> | 2020-01-22 20:07:52 +0100 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2020-01-23 12:11:11 +0000 |
| commit | 8ce1cbd6ce0b1bda0c980c64fee4c1e1378355f1 (patch) | |
| tree | f9a3e9eee0b78ac068a65bd376f7cc9faba727ac /sound | |
| parent | ASoC: Intel: skl_hda_dsp_common: Fix global-out-of-bounds bug (diff) | |
| download | linux-dev-8ce1cbd6ce0b1bda0c980c64fee4c1e1378355f1.tar.xz linux-dev-8ce1cbd6ce0b1bda0c980c64fee4c1e1378355f1.zip | |
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 <dragos_tarcatu@mentor.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20200122190752.3081016-1-perex@perex.cz
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/soc-topology.c | 7 |
1 files changed, 4 insertions, 3 deletions
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; |