diff options
Diffstat (limited to 'virt/kvm/eventfd.c')
| -rw-r--r-- | virt/kvm/eventfd.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 6b390b622b72..249ba5b72e9b 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -304,7 +304,6 @@ static int kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) { struct kvm_kernel_irqfd *irqfd, *tmp; - struct fd f; struct eventfd_ctx *eventfd = NULL, *resamplefd = NULL; int ret; __poll_t events; @@ -327,8 +326,8 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) INIT_WORK(&irqfd->shutdown, irqfd_shutdown); seqcount_spinlock_init(&irqfd->irq_entry_sc, &kvm->irqfds.lock); - f = fdget(args->fd); - if (!fd_file(f)) { + CLASS(fd, f)(args->fd); + if (fd_empty(f)) { ret = -EBADF; goto out; } @@ -336,7 +335,7 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) eventfd = eventfd_ctx_fileget(fd_file(f)); if (IS_ERR(eventfd)) { ret = PTR_ERR(eventfd); - goto fail; + goto out; } irqfd->eventfd = eventfd; @@ -440,12 +439,6 @@ kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) #endif srcu_read_unlock(&kvm->irq_srcu, idx); - - /* - * do not drop the file until the irqfd is fully initialized, otherwise - * we might race against the EPOLLHUP - */ - fdput(f); return 0; fail: @@ -458,8 +451,6 @@ fail: if (eventfd && !IS_ERR(eventfd)) eventfd_ctx_put(eventfd); - fdput(f); - out: kfree(irqfd); return ret; |