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-rw-r--r--drivers/vhost/vdpa.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index f2db99031e2f..29ed4173f04e 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -348,7 +348,9 @@ static long vhost_vdpa_get_iova_range(struct vhost_vdpa *v, u32 __user *argp)
.last = v->range.last,
};
- return copy_to_user(argp, &range, sizeof(range));
+ if (copy_to_user(argp, &range, sizeof(range)))
+ return -EFAULT;
+ return 0;
}
static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd,