From 1057afa0121db8bd3ca4718c8e0ca12388ab7759 Mon Sep 17 00:00:00 2001 From: Xie Yongji Date: Thu, 15 Jul 2021 16:00:25 +0800 Subject: [PATCH] vDPA/ifcvf: Fix return value check for vdpa_alloc_device() 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: 5a2414bc454e ("virtio: Intel IFC VF driver for VDPA") Reported-by: Dan Carpenter Signed-off-by: Xie Yongji Link: https://lore.kernel.org/r/20210715080026.242-3-xieyongji@bytedance.com Signed-off-by: Michael S. Tsirkin Acked-by: Jason Wang Reviewed-by: Stefano Garzarella --- drivers/vdpa/ifcvf/ifcvf_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index 21b78f1..351c6cf 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -493,9 +493,9 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id) adapter = vdpa_alloc_device(struct ifcvf_adapter, vdpa, dev, &ifc_vdpa_ops, NULL); - if (adapter == NULL) { + if (IS_ERR(adapter)) { IFCVF_ERR(pdev, "Failed to allocate vDPA structure"); - return -ENOMEM; + return PTR_ERR(adapter); } pci_set_master(pdev); -- 2.7.4