From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Tony Lindgren <tony@atomide.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.19 02/18] bus: ti-sysc: Fix warning on unbind if reset is not deasserted
Date: Fri, 9 Apr 2021 11:53:30 +0200 [thread overview]
Message-ID: <20210409095301.606177901@linuxfoundation.org> (raw)
In-Reply-To: <20210409095301.525783608@linuxfoundation.org>
From: Tony Lindgren <tony@atomide.com>
[ Upstream commit a7b5d7c4969aba8d1f04c29048906abaa71fb6a9 ]
We currently get thefollowing on driver unbind if a reset is configured
and asserted:
WARNING: CPU: 0 PID: 993 at drivers/reset/core.c:432 reset_control_assert
...
(reset_control_assert) from [<c0fecda8>] (sysc_remove+0x190/0x1e4)
(sysc_remove) from [<c0a2bb58>] (platform_remove+0x24/0x3c)
(platform_remove) from [<c0a292fc>] (__device_release_driver+0x154/0x214)
(__device_release_driver) from [<c0a2a210>] (device_driver_detach+0x3c/0x8c)
(device_driver_detach) from [<c0a27d64>] (unbind_store+0x60/0xd4)
(unbind_store) from [<c0546bec>] (kernfs_fop_write_iter+0x10c/0x1cc)
Let's fix it by checking the reset status.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/bus/ti-sysc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index 54c8c8644df2..b6a278183d82 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1814,7 +1814,9 @@ static int sysc_remove(struct platform_device *pdev)
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
- reset_control_assert(ddata->rsts);
+
+ if (!reset_control_status(ddata->rsts))
+ reset_control_assert(ddata->rsts);
unprepare:
sysc_unprepare(ddata);
--
2.30.2
next prev parent reply other threads:[~2021-04-09 9:58 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-09 9:53 [PATCH 4.19 00/18] 4.19.186-rc1 review Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 01/18] ARM: dts: am33xx: add aliases for mmc interfaces Greg Kroah-Hartman
2021-04-09 9:53 ` Greg Kroah-Hartman [this message]
2021-04-09 9:53 ` [PATCH 4.19 03/18] platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 04/18] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 05/18] mISDN: fix crash in fritzpci Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 06/18] mac80211: choose first enabled channel for monitor Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 07/18] drm/msm: Ratelimit invalid-fence message Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 08/18] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 09/18] x86/build: Turn off -fcf-protection for realmode targets Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 10/18] scsi: target: pscsi: Clean up after failure in pscsi_map_sg() Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 11/18] ia64: mca: allocate early mca with GFP_ATOMIC Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 12/18] ia64: fix format strings for err_inject Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 13/18] cifs: revalidate mapping when we open files for SMB1 POSIX Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 14/18] cifs: Silently ignore unknown oplock break handle Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 15/18] bpf, x86: Validate computation of branch displacements for x86-64 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 16/18] bpf, x86: Validate computation of branch displacements for x86-32 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 17/18] init/Kconfig: make COMPILE_TEST depend on !S390 Greg Kroah-Hartman
2021-04-09 9:53 ` [PATCH 4.19 18/18] init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM Greg Kroah-Hartman
2021-04-09 20:13 ` [PATCH 4.19 00/18] 4.19.186-rc1 review Guenter Roeck
2021-04-09 20:55 ` Shuah Khan
2021-04-10 11:24 ` Greg Kroah-Hartman
2021-04-10 9:07 ` Naresh Kamboju
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=20210409095301.606177901@linuxfoundation.org \
--to=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=sashal@kernel.org \
--cc=stable@vger.kernel.org \
--cc=tony@atomide.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome