RDMA/uverbs: Return not supported error code for unsupported commands

Command that doesn't exist means that it is not supported,
so update code to return -EOPNOTSUPP in case of failure.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 2189a26..8d1547f 100644 (file)
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -714,7 +714,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
        }
 
        if (!verify_command_idx(command, extended_command)) {
-               ret = -EINVAL;
+               ret = -EOPNOTSUPP;
                goto out;
        }