linux-toradex.git/sound/soc/samsung, branch v5.3.2 Linux kernel for Apalis and Colibri modules ASoC: samsung: odroid: fix a double-free issue for cpu_dai 2019-07-16T18:17:15+00:00 Wen Yang wen.yang99@zte.com.cn 2019-07-13T03:46:15+00:00 2abee12c0ab1924a69993d2c063a39a952e7d836 The cpu_dai variable is still being used after the of_node_put() call, which may result in double-free: of_node_put(cpu_dai); ---> released here ret = devm_snd_soc_register_card(dev, card); if (ret < 0) { ... goto err_put_clk_i2s; --> jump to err_put_clk_i2s ... err_put_clk_i2s: clk_put(priv->clk_i2s_bus); err_put_sclk: clk_put(priv->sclk_i2s); err_put_cpu_dai: of_node_put(cpu_dai); --> double-free here Fixes: d832d2b246c5 ("ASoC: samsung: odroid: Fix of_node refcount unbalance") Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/1562989575-33785-3-git-send-email-wen.yang99@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org> 
The cpu_dai variable is still being used after the of_node_put() call,
which may result in double-free:

        of_node_put(cpu_dai);            ---> released here

        ret = devm_snd_soc_register_card(dev, card);
        if (ret < 0) {
...
                goto err_put_clk_i2s;    --> jump to err_put_clk_i2s
...

err_put_clk_i2s:
        clk_put(priv->clk_i2s_bus);
err_put_sclk:
        clk_put(priv->sclk_i2s);
err_put_cpu_dai:
        of_node_put(cpu_dai);            --> double-free here

Fixes: d832d2b246c5 ("ASoC: samsung: odroid: Fix of_node refcount unbalance")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/1562989575-33785-3-git-send-email-wen.yang99@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: odroid: fix an use-after-free issue for codec 2019-07-16T18:17:14+00:00 Wen Yang wen.yang99@zte.com.cn 2019-07-13T03:46:14+00:00 9b6d104a6b150bd4d3e5b039340e1f6b20c2e3c1 The codec variable is still being used after the of_node_put() call, which may result in use-after-free. Fixes: bc3cf17b575a ("ASoC: samsung: odroid: Add support for secondary CPU DAI") Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Sangbeom Kim <sbkim73@samsung.com> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Cc: linux-kernel@vger.kernel.org Link: https://lore.kernel.org/r/1562989575-33785-2-git-send-email-wen.yang99@zte.com.cn Signed-off-by: Mark Brown <broonie@kernel.org> 
The codec variable is still being used after the of_node_put() call,
which may result in use-after-free.

Fixes: bc3cf17b575a ("ASoC: samsung: odroid: Add support for secondary CPU DAI")
Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: alsa-devel@alsa-project.org
Cc: linux-kernel@vger.kernel.org
Link: https://lore.kernel.org/r/1562989575-33785-2-git-send-email-wen.yang99@zte.com.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: tm2_wm5110: consider CPU-Platform possibility 2019-06-28T14:16:22+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-28T01:48:27+00:00 74a25f36ba7af991c1133a5ce75d8f0a65ed3c7c commit ae7cbcc43b8c ("ASoC: samsung: tm2_wm5110: don't select unnecessary Platform") Current ALSA SoC avoid to add duplicate component to rtd, and this driver was selecting CPU component as Platform component. Thus, above patch removed Platform settings from this driver, because it assumed these are same component. But, some CPU driver is using generic DMAEngine, in such case, both CPU component and Platform component will have same of_node/name. In other words, there are some components which are different but have same of_node/name. In such case, Card driver definitely need to select Platform even though it is same as CPU. It is depends on CPU driver, but is difficult to know it from Card driver. This patch reverts above patch. Fixes: commit ae7cbcc43b8c ("ASoC: samsung: tm2_wm5110: don't select unnecessary Platform") Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
commit ae7cbcc43b8c ("ASoC: samsung: tm2_wm5110: don't select unnecessary
Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit ae7cbcc43b8c ("ASoC: samsung: tm2_wm5110: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: snow: consider CPU-Platform possibility 2019-06-28T14:16:03+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-28T01:48:23+00:00 3dfc3e9c24b742067bbcbf849caba294bdb938f6 commit a555b6a959e6 ("ASoC: samsung: snow: don't select unnecessary Platform") Current ALSA SoC avoid to add duplicate component to rtd, and this driver was selecting CPU component as Platform component. Thus, above patch removed Platform settings from this driver, because it assumed these are same component. But, some CPU driver is using generic DMAEngine, in such case, both CPU component and Platform component will have same of_node/name. In other words, there are some components which are different but have same of_node/name. In such case, Card driver definitely need to select Platform even though it is same as CPU. It is depends on CPU driver, but is difficult to know it from Card driver. This patch reverts above patch. Fixes: commit a555b6a959e6 ("ASoC: samsung: snow: don't select unnecessary Platform") Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
commit a555b6a959e6 ("ASoC: samsung: snow: don't select unnecessary
Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit a555b6a959e6 ("ASoC: samsung: snow: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: smdk_wm8994: consider CPU-Platform possibility 2019-06-28T14:15:42+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-28T01:48:19+00:00 806bfc27ea84e7d934f513b6f4948138c782fb4a commit d815e0f08fdd ("ASoC: samsung: smdk_wm8994: don't select unnecessary Platform") Current ALSA SoC avoid to add duplicate component to rtd, and this driver was selecting CPU component as Platform component. Thus, above patch removed Platform settings from this driver, because it assumed these are same component. But, some CPU driver is using generic DMAEngine, in such case, both CPU component and Platform component will have same of_node/name. In other words, there are some components which are different but have same of_node/name. In such case, Card driver definitely need to select Platform even though it is same as CPU. It is depends on CPU driver, but is difficult to know it from Card driver. This patch reverts above patch. Fixes: commit d815e0f08fdd ("ASoC: samsung: smdk_wm8994: don't select unnecessary Platform") Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
commit d815e0f08fdd ("ASoC: samsung: smdk_wm8994: don't select unnecessary
Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit d815e0f08fdd ("ASoC: samsung: smdk_wm8994: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: arndale_rt5631: consider CPU-Platform possibility 2019-06-28T14:15:22+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-28T01:48:15+00:00 a0e95c4d376d30e50b2b1f4769a6dcc5c7604505 commit 33949eb5019d ("ASoC: samsung: arndale_rt5631: don't select unnecessary Platform") Current ALSA SoC avoid to add duplicate component to rtd, and this driver was selecting CPU component as Platform component. Thus, above patch removed Platform settings from this driver, because it assumed these are same component. But, some CPU driver is using generic DMAEngine, in such case, both CPU component and Platform component will have same of_node/name. In other words, there are some components which are different but have same of_node/name. In such case, Card driver definitely need to select Platform even though it is same as CPU. It is depends on CPU driver, but is difficult to know it from Card driver. This patch reverts above patch. Fixes: commit 33949eb5019d ("ASoC: samsung: arndale_rt5631: don't select unnecessary Platform") Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
commit 33949eb5019d ("ASoC: samsung: arndale_rt5631: don't select
unnecessary Platform")

Current ALSA SoC avoid to add duplicate component to rtd,
and this driver was selecting CPU component as Platform component.
Thus, above patch removed Platform settings from this driver,
because it assumed these are same component.

But, some CPU driver is using generic DMAEngine, in such case, both
CPU component and Platform component will have same of_node/name.
In other words, there are some components which are different but
have same of_node/name.

In such case, Card driver definitely need to select Platform even
though it is same as CPU.
It is depends on CPU driver, but is difficult to know it from Card driver.
This patch reverts above patch.

Fixes: commit 33949eb5019d ("ASoC: samsung: arndale_rt5631: don't select unnecessary Platform")
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge tag 'v5.2-rc6' into asoc-5.3 2019-06-26T11:39:34+00:00 Mark Brown broonie@kernel.org 2019-06-26T11:39:34+00:00 53c8b29abe42e5601cfa0ea5962532f0cfdec8a0 Linux 5.2-rc6 
Linux 5.2-rc6
ASoC: samsung: tm2_wm5110: don't select unnecessary Platform 2019-06-19T11:54:56+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-19T01:18:17+00:00 ae7cbcc43b8c275b9f9b2491144110d260cd6b18 ALSA SoC is now supporting "no Platform". Sound card doesn't need to select "CPU component" as "Platform" anymore if it doesn't need special Platform. This patch removes such settings. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
ALSA SoC is now supporting "no Platform". Sound card doesn't need to
select "CPU component" as "Platform" anymore if it doesn't need
special Platform.
This patch removes such settings.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: snow: don't select unnecessary Platform 2019-06-19T11:54:37+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-19T01:18:12+00:00 a555b6a959e6a1539d8a1dc6a48d5c8920d7724e ALSA SoC is now supporting "no Platform". Sound card doesn't need to select "CPU component" as "Platform" anymore if it doesn't need special Platform. This patch removes such settings. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
ALSA SoC is now supporting "no Platform". Sound card doesn't need to
select "CPU component" as "Platform" anymore if it doesn't need
special Platform.
This patch removes such settings.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
ASoC: samsung: smdk_wm8994: don't select unnecessary Platform 2019-06-19T11:54:19+00:00 Kuninori Morimoto kuninori.morimoto.gx@renesas.com 2019-06-19T01:18:09+00:00 d815e0f08fdd6259c9fff9eb4dc1834454526e98 ALSA SoC is now supporting "no Platform". Sound card doesn't need to select "CPU component" as "Platform" anymore if it doesn't need special Platform. This patch removes such settings. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org> 
ALSA SoC is now supporting "no Platform". Sound card doesn't need to
select "CPU component" as "Platform" anymore if it doesn't need
special Platform.
This patch removes such settings.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>