can: isotp: add symbolic error message to isotp_module_init()

This patch adds the value of err with format %pe to the already
existing error message.

Link: https://lore.kernel.org/r/20210427052150.2308-3-menschel.p@posteo.de
Signed-off-by: Patrick Menschel <menschel.p@posteo.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

diff --git a/net/can/isotp.c b/net/can/isotp.c
index 2c4f84f..2075d8d 100644 (file)
--- a/net/can/isotp.c
+++ b/net/can/isotp.c
@@ -1433,7 +1433,7 @@ static __init int isotp_module_init(void)
 
        err = can_proto_register(&isotp_can_proto);
        if (err < 0)
-               pr_err("can: registration of isotp protocol failed\n");
+               pr_err("can: registration of isotp protocol failed %pe\n", ERR_PTR(err));
 
        return err;
 }