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Message-ID: <20251007222733.349460-1-seanjc@google.com>
Date: Tue, 7 Oct 2025 15:27:33 -0700
From: Sean Christopherson <seanjc@...gle.com>
To: Paolo Bonzini <pbonzini@...hat.com>
Cc: kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
Sean Christopherson <seanjc@...gle.com>
Subject: [PATCH] KVM: guest_memfd: Drop a superfluous local var in kvm_gmem_fault_user_mapping()
Drop the local "int err" that's buried in the middle guest_memfd's user
fault handler to avoid the potential for variable shadowing, e.g. if an
"err" variable were also declared at function scope.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
virt/kvm/guest_memfd.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/virt/kvm/guest_memfd.c b/virt/kvm/guest_memfd.c
index 94bafd6c558c..abbec01d7a3a 100644
--- a/virt/kvm/guest_memfd.c
+++ b/virt/kvm/guest_memfd.c
@@ -330,12 +330,10 @@ static vm_fault_t kvm_gmem_fault_user_mapping(struct vm_fault *vmf)
folio = kvm_gmem_get_folio(inode, vmf->pgoff);
if (IS_ERR(folio)) {
- int err = PTR_ERR(folio);
-
- if (err == -EAGAIN)
+ if (PTR_ERR(folio) == -EAGAIN)
return VM_FAULT_RETRY;
- return vmf_error(err);
+ return vmf_error(PTR_ERR(folio));
}
if (WARN_ON_ONCE(folio_test_large(folio))) {
base-commit: 6b36119b94d0b2bb8cea9d512017efafd461d6ac
--
2.51.0.710.ga91ca5db03-goog
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