On 21/11/2017 13:46, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> Date: Tue, 21 Nov 2017 13:40:17 +0100
>
> Add a jump target so that a bit of exception handling can be better reused
> at the end of this function.
>
> This issue was detected by using the Coccinelle software.
>
> Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
> ---
> virt/kvm/kvm_main.c | 21 +++++++++++----------
> 1 file changed, 11 insertions(+), 10 deletions(-)
>
> diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
> index 39e4db469f2e..c84341c79955 100644
> --- a/virt/kvm/kvm_main.c
> +++ b/virt/kvm/kvm_main.c
> @@ -3155,21 +3155,18 @@ static int kvm_dev_ioctl_create_vm(unsigned long type)
> return PTR_ERR(kvm);
> #ifdef CONFIG_KVM_MMIO
> r = kvm_coalesced_mmio_init(kvm);
> - if (r < 0) {
> - kvm_put_kvm(kvm);
> - return r;
> - }
> + if (r < 0)
> + goto put_kvm;
> #endif
> r = get_unused_fd_flags(O_CLOEXEC);
> - if (r < 0) {
> - kvm_put_kvm(kvm);
> - return r;
> - }
> + if (r < 0)
> + goto put_kvm;
> +
> file = anon_inode_getfile("kvm-vm", &kvm_vm_fops, kvm, O_RDWR);
> if (IS_ERR(file)) {
> put_unused_fd(r);
> - kvm_put_kvm(kvm);
> - return PTR_ERR(file);
> + r = PTR_ERR(file);
> + goto put_kvm;
> }
>
> /*
> @@ -3187,6 +3184,10 @@ static int kvm_dev_ioctl_create_vm(unsigned long type)
>
> fd_install(r, file);
> return r;
> +
> +put_kvm:
> + kvm_put_kvm(kvm);
> + return r;
> }
>
> static long kvm_dev_ioctl(struct file *filp,
>
Queued, thanks.
Paolo
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