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path: root/drivers/hv/hv_utils_transport.c
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Diffstat (limited to 'drivers/hv/hv_utils_transport.c')
-rw-r--r--drivers/hv/hv_utils_transport.c9
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/hv/hv_utils_transport.c b/drivers/hv/hv_utils_transport.c
index 1505ee6e6605..24b2766a6d34 100644
--- a/drivers/hv/hv_utils_transport.c
+++ b/drivers/hv/hv_utils_transport.c
@@ -80,11 +80,10 @@ static ssize_t hvt_op_write(struct file *file, const char __user *buf,
hvt = container_of(file->f_op, struct hvutil_transport, fops);
- inmsg = kzalloc(count, GFP_KERNEL);
- if (copy_from_user(inmsg, buf, count)) {
- kfree(inmsg);
- return -EFAULT;
- }
+ inmsg = memdup_user(buf, count);
+ if (IS_ERR(inmsg))
+ return PTR_ERR(inmsg);
+
if (hvt->on_msg(inmsg, count))
return -EFAULT;
kfree(inmsg);