github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 01:32:21 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

vdpa/ifcvf: handle dev_set_name() failure in ifcvf_vdpa_dev_add()

Browse Source 
dev_set_name() may fail and return an error, but its return value
is currently ignored and overwritten by _vdpa_register_device().

Abort device creation if dev_set_name() fails and release the
device reference to avoid continuing with an improperly initialized
struct device.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Evgenii Burenchev <evg28bur@yandex.ru>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Zhu Lingshan <lingshan.zhu@kernel.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260226152924.38790-1-evg28bur@yandex.ru>
This commit is contained in:
Evgenii Burenchev 2026-02-26 18:29:23 +03:00 committed by Michael S. Tsirkin
parent b3592a32b3
commit 4c653e8585
1 changed files with 9 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/vdpa/ifcvf/ifcvf_main.c
View File

@ -734,15 +734,22 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name,
ret = dev_set_name(&vdpa_dev->dev, "%s", name);
else
ret = dev_set_name(&vdpa_dev->dev, "vdpa%u", vdpa_dev->index);
if (ret) {
IFCVF_ERR(pdev, "Failed to set device name");
goto err;
}
ret = _vdpa_register_device(&adapter->vdpa, vf->nr_vring);
if (ret) {
put_device(&adapter->vdpa.dev);
IFCVF_ERR(pdev, "Failed to register to vDPA bus");
return ret;
goto err;
}
return 0;
err:
put_device(&adapter->vdpa.dev);
return ret;
}
static void ifcvf_vdpa_dev_del(struct vdpa_mgmt_dev *mdev, struct vdpa_device *dev)