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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 5.11 02/45] bus: ti-sysc: Fix warning on unbind if reset is not deasserted
Date: Fri,  9 Apr 2021 11:53:28 +0200	[thread overview]
Message-ID: <20210409095305.479229488@linuxfoundation.org> (raw)
In-Reply-To: <20210409095305.397149021@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 a27d751cf219..3d74f237f005 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -3053,7 +3053,9 @@ 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




  parent reply	other threads:[~2021-04-09 10:11 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-09  9:53 [PATCH 5.11 00/45] 5.11.13-rc1 review Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 01/45] 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 5.11 03/45] drm/msm: a6xx: Make sure the SQE microcode is safe Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 04/45] platform/x86: intel-hid: Support Lenovo ThinkPad X1 Tablet Gen 2 Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 05/45] bpf, x86: Use kvmalloc_array instead kmalloc_array in bpf_jit_comp Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 06/45] net/mlx5e: Enforce minimum value check for ICOSQ size Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 07/45] net: pxa168_eth: Fix a potential data race in pxa168_eth_remove Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 08/45] kunit: tool: Fix a python tuple typing error Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 09/45] mISDN: fix crash in fritzpci Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 10/45] net: arcnet: com20020 fix error handling Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 11/45] can: kvaser_usb: Add support for USBcan Pro 4xHS Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 12/45] mac80211: Check crypto_aead_encrypt for errors Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 13/45] mac80211: choose first enabled channel for monitor Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 14/45] drm/msm/dsi_pll_7nm: Fix variable usage for pll_lockdet_rate Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 15/45] drm/msm/adreno: a5xx_power: Dont apply A540 lm_setup to other GPUs Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 16/45] drm/msm: Ratelimit invalid-fence message Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 17/45] netfilter: conntrack: Fix gre tunneling over ipv6 Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 18/45] netfilter: nftables: skip hook overlap logic if flowtable is stale Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 19/45] net: ipa: fix init header command validation Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 20/45] platform/x86: thinkpad_acpi: Allow the FnLock LED to change state Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 21/45] kselftest/arm64: sve: Do not use non-canonical FFR register value Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 22/45] drm/msm/disp/dpu1: icc path needs to be set before dpu runtime resume Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 23/45] x86/build: Turn off -fcf-protection for realmode targets Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 24/45] block: clear GD_NEED_PART_SCAN later in bdev_disk_changed Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 25/45] platform/x86: intel_pmt_class: Initial resource to 0 Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 26/45] platform/x86: intel_pmc_core: Ignore GBE LTR on Tiger Lake platforms Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 27/45] ptp_qoriq: fix overflow in ptp_qoriq_adjfine() u64 calcalation Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 28/45] scsi: target: pscsi: Clean up after failure in pscsi_map_sg() Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 29/45] arm64: kernel: disable CNP on Carmel Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 30/45] selftests/vm: fix out-of-tree build Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 31/45] ia64: mca: allocate early mca with GFP_ATOMIC Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 32/45] ia64: fix format strings for err_inject Greg Kroah-Hartman
2021-04-09  9:53 ` [PATCH 5.11 33/45] cifs: revalidate mapping when we open files for SMB1 POSIX Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 34/45] cifs: Silently ignore unknown oplock break handle Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 35/45] io_uring: fix timeout cancel return code Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 36/45] math: Export mul_u64_u64_div_u64 Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 37/45] tools/resolve_btfids: Build libbpf and libsubcmd in separate directories Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 38/45] tools/resolve_btfids: Check objects before removing Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 39/45] tools/resolve_btfids: Set srctree variable unconditionally Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 40/45] kbuild: Add resolve_btfids clean to root clean target Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 41/45] kbuild: Do not clean resolve_btfids if the output does not exist Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 42/45] tools/resolve_btfids: Add /libbpf to .gitignore Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 43/45] bpf, x86: Validate computation of branch displacements for x86-64 Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 44/45] bpf, x86: Validate computation of branch displacements for x86-32 Greg Kroah-Hartman
2021-04-09  9:54 ` [PATCH 5.11 45/45] init/Kconfig: make COMPILE_TEST depend on HAS_IOMEM Greg Kroah-Hartman
2021-04-09 20:14 ` [PATCH 5.11 00/45] 5.11.13-rc1 review Guenter Roeck
2021-04-09 20:38 ` Shuah Khan
2021-04-10  6:26 ` Naresh Kamboju

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