Stefano Garzarella
2021-Jul-26 09:28 UTC
[PATCH 2/4] vp_vdpa: Fix return value check for vdpa_alloc_device()
On Thu, Jul 15, 2021 at 04:00:24PM +0800, Xie Yongji wrote:>The vdpa_alloc_device() returns an error pointer upon >failure, not NULL. To handle the failure correctly, this >replaces NULL check with IS_ERR() check and propagate the >error upwards. > >Fixes: 64b9f64f80a6 ("vdpa: introduce virtio pci driver") >Reported-by: Dan Carpenter <dan.carpenter at oracle.com> >Signed-off-by: Xie Yongji <xieyongji at bytedance.com> >--- > drivers/vdpa/virtio_pci/vp_vdpa.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > >diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c >index 7b4a6396c553..fe0527329857 100644 >--- a/drivers/vdpa/virtio_pci/vp_vdpa.c >+++ b/drivers/vdpa/virtio_pci/vp_vdpa.c >@@ -436,9 +436,9 @@ static int vp_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id) > > vp_vdpa = vdpa_alloc_device(struct vp_vdpa, vdpa, > dev, &vp_vdpa_ops, NULL); >- if (vp_vdpa == NULL) { >+ if (IS_ERR(vp_vdpa)) { > dev_err(dev, "vp_vdpa: Failed to allocate vDPA structure\n"); >- return -ENOMEM; >+ return PTR_ERR(vp_vdpa); > } > > mdev = &vp_vdpa->mdev; >-- >2.11.0 >Reviewed-by: Stefano Garzarella <sgarzare at redhat.com>