gb_tty_init() maps any tty_alloc_driver() failure to -ENOMEM. This loses the real errno returned by the driver core and makes failures harder to diagnose correctly.

Return PTR_ERR(gb_tty_driver) instead so callers receive the actual failure reason while preserving the existing cleanup path.

Signed-off-by: Alfie Varghese alfievarghese22@gmail.com --- drivers/staging/greybus/uart.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c index 7d060b4cd33d..24b4dab069c3 100644 --- a/drivers/staging/greybus/uart.c +++ b/drivers/staging/greybus/uart.c @@ -951,7 +951,7 @@ static int gb_tty_init(void) TTY_DRIVER_DYNAMIC_DEV); if (IS_ERR(gb_tty_driver)) { pr_err("Can not allocate tty driver\n"); - retval = -ENOMEM; + retval = PTR_ERR(gb_tty_driver); goto fail_unregister_dev; }