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-rw-r--r--drivers/vhost/vhost.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 9f7942cbcbb2..bac939af8dbb 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1034,8 +1034,10 @@ ssize_t vhost_chr_write_iter(struct vhost_dev *dev,
int type, ret;
ret = copy_from_iter(&type, sizeof(type), from);
- if (ret != sizeof(type))
+ if (ret != sizeof(type)) {
+ ret = -EINVAL;
goto done;
+ }
switch (type) {
case VHOST_IOTLB_MSG:
@@ -1054,8 +1056,10 @@ ssize_t vhost_chr_write_iter(struct vhost_dev *dev,
iov_iter_advance(from, offset);
ret = copy_from_iter(&msg, sizeof(msg), from);
- if (ret != sizeof(msg))
+ if (ret != sizeof(msg)) {
+ ret = -EINVAL;
goto done;
+ }
if (vhost_process_iotlb_msg(dev, &msg)) {
ret = -EFAULT;
goto done;