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authorXie Yongji <xieyongji@bytedance.com>2021-07-15 16:00:23 +0800
committerMichael S. Tsirkin <mst@redhat.com>2021-08-11 06:44:23 -0400
commit2b847f21145d84e2e1dde99d3e2c00a5468f02e4 (patch)
tree90319556ead9a57ca98dd396845fc51910d3c77e /drivers/vdpa/vdpa_sim
parentf7ad318ea0ad58ebe0e595e59aed270bb643b29b (diff)
vdpa_sim: 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: 2c53d0f64c06 ("vdpasim: vDPA device simulator") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Link: https://lore.kernel.org/r/20210715080026.242-1-xieyongji@bytedance.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Diffstat (limited to 'drivers/vdpa/vdpa_sim')
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 14e024de5cbf..c621cf7feec0 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -251,8 +251,10 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr)
vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops,
dev_attr->name);
- if (!vdpasim)
+ if (IS_ERR(vdpasim)) {
+ ret = PTR_ERR(vdpasim);
goto err_alloc;
+ }
vdpasim->dev_attr = *dev_attr;
INIT_WORK(&vdpasim->work, dev_attr->work_fn);