From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Sasha Levin <sashal@kernel.org>,
patches@opensource.cirrus.com, alsa-devel@alsa-project.org,
Mark Brown <broonie@kernel.org>,
Lucas Tanure <tanureal@opensource.cirrus.com>
Subject: [PATCH AUTOSEL 5.13 03/12] ASoC: wm_adsp: Let soc_cleanup_component_debugfs remove debugfs
Date: Mon, 16 Aug 2021 20:35:27 -0400 [thread overview]
Message-ID: <20210817003536.83063-3-sashal@kernel.org> (raw)
In-Reply-To: <20210817003536.83063-1-sashal@kernel.org>
From: Lucas Tanure <tanureal@opensource.cirrus.com>
[ Upstream commit acbf58e530416e167c3b323111f4013d9f2b0a7d ]
soc_cleanup_component_debugfs will debugfs_remove_recursive
the component->debugfs_root, so adsp doesn't need to also
remove the same entry.
By doing that adsp also creates a race with core component,
which causes a NULL pointer dereference
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210728104416.636591-1-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/wm_adsp.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index cef05d81c39b..6698b5343974 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -746,7 +746,6 @@ static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
{
wm_adsp_debugfs_clear(dsp);
- debugfs_remove_recursive(dsp->debugfs_root);
}
#else
static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
--
2.30.2
WARNING: multiple messages have this Message-ID (diff)
From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Lucas Tanure <tanureal@opensource.cirrus.com>,
Mark Brown <broonie@kernel.org>, Sasha Levin <sashal@kernel.org>,
patches@opensource.cirrus.com, alsa-devel@alsa-project.org
Subject: [PATCH AUTOSEL 5.13 03/12] ASoC: wm_adsp: Let soc_cleanup_component_debugfs remove debugfs
Date: Mon, 16 Aug 2021 20:35:27 -0400 [thread overview]
Message-ID: <20210817003536.83063-3-sashal@kernel.org> (raw)
In-Reply-To: <20210817003536.83063-1-sashal@kernel.org>
From: Lucas Tanure <tanureal@opensource.cirrus.com>
[ Upstream commit acbf58e530416e167c3b323111f4013d9f2b0a7d ]
soc_cleanup_component_debugfs will debugfs_remove_recursive
the component->debugfs_root, so adsp doesn't need to also
remove the same entry.
By doing that adsp also creates a race with core component,
which causes a NULL pointer dereference
Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210728104416.636591-1-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/codecs/wm_adsp.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index cef05d81c39b..6698b5343974 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -746,7 +746,6 @@ static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
static void wm_adsp2_cleanup_debugfs(struct wm_adsp *dsp)
{
wm_adsp_debugfs_clear(dsp);
- debugfs_remove_recursive(dsp->debugfs_root);
}
#else
static inline void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
--
2.30.2
next prev parent reply other threads:[~2021-08-17 0:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 0:35 [PATCH AUTOSEL 5.13 01/12] ASoC: rt5682: Adjust headset volume button threshold Sasha Levin
2021-08-17 0:35 ` Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 02/12] ASoC: component: Remove misplaced prefix handling in pin control functions Sasha Levin
2021-08-17 0:35 ` Sasha Levin
2021-08-30 12:49 ` Pavel Machek
2021-08-30 12:49 ` Pavel Machek
2021-08-17 0:35 ` Sasha Levin [this message]
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 03/12] ASoC: wm_adsp: Let soc_cleanup_component_debugfs remove debugfs Sasha Levin
2021-08-18 13:15 ` Charles Keepax
2021-08-18 13:15 ` Charles Keepax
2021-08-19 13:26 ` Sasha Levin
2021-08-19 13:26 ` Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 04/12] platform/x86: Add and use a dual_accel_detect() helper Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 05/12] ARC: Fix CONFIG_STACKDEPOT Sasha Levin
2021-08-17 0:35 ` Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 06/12] netfilter: ipset: Limit the maximal range of consecutive elements to add/delete Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 07/12] netfilter: conntrack: collect all entries in one cycle Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 08/12] once: Fix panic when module unload Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 09/12] io_uring: rsrc ref lock needs to be IRQ safe Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 10/12] blk-iocost: fix lockdep warning on blkcg->lock Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 11/12] ovl: fix uninitialized pointer read in ovl_lookup_real_one() Sasha Levin
2021-08-17 0:35 ` [PATCH AUTOSEL 5.13 12/12] net: mscc: Fix non-GPL export of regmap APIs Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210817003536.83063-3-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=alsa-devel@alsa-project.org \
--cc=broonie@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=patches@opensource.cirrus.com \
--cc=stable@vger.kernel.org \
--cc=tanureal@opensource.cirrus.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.