The npages variable does not need to be initialized and assigned, it is first assigned before it is used. Signed-off-by: Li kunyu <kunyu@xxxxxxxxxxxx> --- virt/kvm/kvm_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 82f2b90718a9..f047799bf19b 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2516,7 +2516,7 @@ static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, { unsigned int flags = FOLL_HWPOISON; struct page *page; - int npages = 0; + int npages; might_sleep(); -- 2.18.2