From: "Kun(llfl)" <llfl@linux.alibaba.com>
To: Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Jerry Snitselaar <jsnitsel@redhat.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Robin Murphy <robin.murphy@arm.com>,
iommu@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 1/1] iommu/amd: Fix sysfs leak in iommu init
Date: Tue, 7 May 2024 10:32:15 +0800 [thread overview]
Message-ID: <4d516a6500ea0760e13cc19e2b14e663aa333518.1715048443.git.llfl@linux.alibaba.com> (raw)
During the iommu initialization, iommu_init_pci() adds sysfs nodes.
However, these nodes aren't remove in free_iommu_resources() subsequently.
Fixes: ad8694bac410 ("iommu/amd: Move AMD IOMMU driver into subdirectory")
Signed-off-by: Kun(llfl) <llfl@linux.alibaba.com>
---
drivers/iommu/amd/init.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index ac6754a85f35..624ea2549f64 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -1678,8 +1678,15 @@ static void __init free_pci_segments(void)
}
}
+static void __init free_sysfs(struct amd_iommu *iommu)
+{
+ if (iommu->iommu.dev)
+ iommu_device_sysfs_remove(&iommu->iommu);
+}
+
static void __init free_iommu_one(struct amd_iommu *iommu)
{
+ free_sysfs(iommu);
free_cwwb_sem(iommu);
free_command_buffer(iommu);
free_event_buffer(iommu);
--
2.43.0
next reply other threads:[~2024-05-07 2:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-07 2:32 Kun(llfl) [this message]
2024-05-07 9:12 ` [PATCH 1/1] iommu/amd: Fix sysfs leak in iommu init Suthikulpanit, Suravee
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=4d516a6500ea0760e13cc19e2b14e663aa333518.1715048443.git.llfl@linux.alibaba.com \
--to=llfl@linux.alibaba.com \
--cc=iommu@lists.linux.dev \
--cc=joro@8bytes.org \
--cc=jsnitsel@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=robin.murphy@arm.com \
--cc=suravee.suthikulpanit@amd.com \
--cc=will@kernel.org \
/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;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).