From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Zheyu Ma <zheyuma97@gmail.com>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Sasha Levin <sashal@kernel.org>,
linux-media@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 10/24] media: cx25821: Fix the warning when removing the module
Date: Mon, 30 May 2022 09:51:57 -0400 [thread overview]
Message-ID: <20220530135211.1937674-10-sashal@kernel.org> (raw)
In-Reply-To: <20220530135211.1937674-1-sashal@kernel.org>
From: Zheyu Ma <zheyuma97@gmail.com>
[ Upstream commit 2203436a4d24302871617373a7eb21bc17e38762 ]
When removing the module, we will get the following warning:
[ 14.746697] remove_proc_entry: removing non-empty directory 'irq/21', leaking at least 'cx25821[1]'
[ 14.747449] WARNING: CPU: 4 PID: 368 at fs/proc/generic.c:717 remove_proc_entry+0x389/0x3f0
[ 14.751611] RIP: 0010:remove_proc_entry+0x389/0x3f0
[ 14.759589] Call Trace:
[ 14.759792] <TASK>
[ 14.759975] unregister_irq_proc+0x14c/0x170
[ 14.760340] irq_free_descs+0x94/0xe0
[ 14.760640] mp_unmap_irq+0xb6/0x100
[ 14.760937] acpi_unregister_gsi_ioapic+0x27/0x40
[ 14.761334] acpi_pci_irq_disable+0x1d3/0x320
[ 14.761688] pci_disable_device+0x1ad/0x380
[ 14.762027] ? _raw_spin_unlock_irqrestore+0x2d/0x60
[ 14.762442] ? cx25821_shutdown+0x20/0x9f0 [cx25821]
[ 14.762848] cx25821_finidev+0x48/0xc0 [cx25821]
[ 14.763242] pci_device_remove+0x92/0x240
Fix this by freeing the irq before call pci_disable_device().
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/media/pci/cx25821/cx25821-core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/pci/cx25821/cx25821-core.c b/drivers/media/pci/cx25821/cx25821-core.c
index d58c58e61bde..acd896ca1339 100644
--- a/drivers/media/pci/cx25821/cx25821-core.c
+++ b/drivers/media/pci/cx25821/cx25821-core.c
@@ -1354,11 +1354,11 @@ static void cx25821_finidev(struct pci_dev *pci_dev)
struct cx25821_dev *dev = get_cx25821(v4l2_dev);
cx25821_shutdown(dev);
- pci_disable_device(pci_dev);
/* unregister stuff */
if (pci_dev->irq)
free_irq(pci_dev->irq, dev);
+ pci_disable_device(pci_dev);
cx25821_dev_unregister(dev);
v4l2_device_unregister(v4l2_dev);
--
2.35.1
next prev parent reply other threads:[~2022-05-30 14:51 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-30 13:51 [PATCH AUTOSEL 4.9 01/24] drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 02/24] mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 03/24] b43legacy: Fix assigning negative value to unsigned variable Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 04/24] b43: " Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 05/24] ipw2x00: Fix potential NULL dereference in libipw_xmit() Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 06/24] ACPICA: Avoid cache flush inside virtual machines Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 07/24] ALSA: jack: Access input_dev under mutex Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 08/24] drm/amd/pm: fix double free in si_parse_power_table() Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 09/24] ath9k: fix QCA9561 PA bias level Sasha Levin
2022-05-30 13:51 ` Sasha Levin [this message]
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 11/24] scsi: megaraid: Fix error check return value of register_chrdev() Sasha Levin
2022-05-30 13:51 ` [PATCH AUTOSEL 4.9 12/24] drm/amd/pm: fix the compile warning Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 13/24] ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 14/24] ASoC: dapm: Don't fold register value changes into notifications Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 15/24] net: remove two BUG() from skb_checksum_help() Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 16/24] dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 17/24] ipmi:ssif: Check for NULL msg when handling events and messages Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 18/24] openrisc: start CPU timer early in boot Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 19/24] nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 20/24] ASoC: rt5645: Fix errorenous cleanup order Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 21/24] media: exynos4-is: Fix compile warning Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 22/24] ARM: 9201/1: spectre-bhb: rely on linker to emit cross-section literal loads Sasha Levin
2022-05-30 13:53 ` Ard Biesheuvel
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 23/24] rxrpc: Return an error to sendmsg if call failed Sasha Levin
2022-05-30 13:52 ` [PATCH AUTOSEL 4.9 24/24] eth: tg3: silence the GCC 12 array-bounds warning Sasha Levin
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