linux-kernel - [PATCH] arm64: kvm: ptdump: Initialize .owner fields of kvm_*

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Message-Id: <20250223150844.628175-1-salah.triki@gmail.com>
Date: Sun, 23 Feb 2025 16:08:44 +0100
From: Salah Triki <salah.triki@...il.com>
To: Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	Joey Gouly <joey.gouly@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Zenghui Yu <yuzenghui@...wei.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	kvmarm@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Cc: Salah Triki <salah.triki@...il.com>
Subject: [PATCH] arm64: kvm: ptdump: Initialize .owner fields of kvm_*_operations

Initialize .owner fields of kvm_ptdump_guest_fops,
kvm_pgtable_range_fops and kvm_pgtable_levels_fops to THIS_MODULE in
order to prevent unloading the module while these operations are still
in use.

Signed-off-by: Salah Triki <salah.triki@...il.com>
---
 arch/arm64/kvm/ptdump.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/kvm/ptdump.c b/arch/arm64/kvm/ptdump.c
index e4a342e903e2..50f7d39333d6 100644
--- a/arch/arm64/kvm/ptdump.c
+++ b/arch/arm64/kvm/ptdump.c
@@ -185,6 +185,7 @@ static int kvm_ptdump_guest_close(struct inode *m, struct file *file)
 }
 
 static const struct file_operations kvm_ptdump_guest_fops = {
+	.owner		= THIS_MODULE,
 	.open		= kvm_ptdump_guest_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -244,6 +245,7 @@ static int kvm_pgtable_debugfs_close(struct inode *m, struct file *file)
 }
 
 static const struct file_operations kvm_pgtable_range_fops = {
+	.owner		= THIS_MODULE,
 	.open		= kvm_pgtable_range_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -251,6 +253,7 @@ static const struct file_operations kvm_pgtable_range_fops = {
 };
 
 static const struct file_operations kvm_pgtable_levels_fops = {
+	.owner		= THIS_MODULE,
 	.open		= kvm_pgtable_levels_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-- 
2.34.1