RDMA/siw: Fix error return code in siw_init_module()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: bdcf26b ("rdma/siw: network and RDMA core interface")
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Yongjun <[email protected]>
Reviewed-by: Bernard Metzler <[email protected]>
Reviewed-by: Jason Gunthorpe <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>

Author: Wei Yongjun

drivers/infiniband/sw/siw/siw_main.c

@@ -612,6 +612,7 @@ static __init int siw_init_module(void)
 
 	if (!siw_create_tx_threads()) {
 		pr_info("siw: Could not start any TX thread\n");
+		rv = -ENOMEM;
 		goto out_error;
 	}
 	/*