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Shutemov" Cc: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, kvm@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, x86@kernel.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, Ira Weiny , Kai Huang , Michael Roth , Yan Zhao , Vishal Annapurve , Rick Edgecombe , Ackerley Tng , Binbin Wu Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Use guard() in tdx_vm_ioctl() to tidy up the code a small amount, but more importantly to minimize the diff of a future change, which will use guard-like semantics to acquire and release multiple locks. No functional change intended. Signed-off-by: Sean Christopherson Reviewed-by: Kai Huang Reviewed-by: Rick Edgecombe --- arch/x86/kvm/vmx/tdx.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/arch/x86/kvm/vmx/tdx.c b/arch/x86/kvm/vmx/tdx.c index 1de5f17a7989..84b5fe654c99 100644 --- a/arch/x86/kvm/vmx/tdx.c +++ b/arch/x86/kvm/vmx/tdx.c @@ -2781,7 +2781,7 @@ int tdx_vm_ioctl(struct kvm *kvm, void __user *argp) if (r) return r; =20 - mutex_lock(&kvm->lock); + guard(mutex)(&kvm->lock); =20 switch (tdx_cmd.id) { case KVM_TDX_CAPABILITIES: @@ -2794,15 +2794,12 @@ int tdx_vm_ioctl(struct kvm *kvm, void __user *argp) r =3D tdx_td_finalize(kvm, &tdx_cmd); break; default: - r =3D -EINVAL; - goto out; + return -EINVAL; } =20 if (copy_to_user(argp, &tdx_cmd, sizeof(struct kvm_tdx_cmd))) - r =3D -EFAULT; + return -EFAULT; =20 -out: - mutex_unlock(&kvm->lock); return r; } =20 --=20 2.51.0.858.gf9c4a03a3a-goog