From 9d5a1dcebfbe0e421412fcf5ab86d30e2e65bab4 Mon Sep 17 00:00:00 2001 From: Luiz Capitulino Date: Wed, 7 Sep 2016 14:47:21 -0400 Subject: [PATCH] kvm: kvm_destroy_vm_debugfs(): check debugfs_stat_data pointer This make it possible to call kvm_destroy_vm_debugfs() from kvm_create_vm_debugfs() in error conditions. Reviewed-by: Paolo Bonzini Signed-off-by: Luiz Capitulino Signed-off-by: Paolo Bonzini --- virt/kvm/kvm_main.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index a00f8e4045cf..a6e864c67e35 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -559,9 +559,11 @@ static void kvm_destroy_vm_debugfs(struct kvm *kvm) debugfs_remove_recursive(kvm->debugfs_dentry); - for (i = 0; i < kvm_debugfs_num_entries; i++) - kfree(kvm->debugfs_stat_data[i]); - kfree(kvm->debugfs_stat_data); + if (kvm->debugfs_stat_data) { + for (i = 0; i < kvm_debugfs_num_entries; i++) + kfree(kvm->debugfs_stat_data[i]); + kfree(kvm->debugfs_stat_data); + } } static int kvm_create_vm_debugfs(struct kvm *kvm, int fd) -- 2.39.5