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tty: serial_core: fix error code returned by uart_register_driver()

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uart_register_driver() returned -ENOMEM on any error, even when
tty_register_driver() call returned another one, such as -EBUSY.

Signed-off-by: Sergey Organov <sorganov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergey Organov
2019-04-23 08:06:58 +03:00
committed by Greg Kroah-Hartman
parent bdbd0a7f8f
commit 050dfc09f8
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/serial_core.c
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@@ -2507,7 +2507,7 @@ static const struct tty_port_operations uart_port_ops = {
int uart_register_driver(struct uart_driver *drv) int uart_register_driver(struct uart_driver *drv)
{ {
struct tty_driver *normal; struct tty_driver *normal;
int i, retval; int i, retval = -ENOMEM;
BUG_ON(drv->state); BUG_ON(drv->state);
@@ -2559,7 +2559,7 @@ int uart_register_driver(struct uart_driver *drv)
out_kfree: out_kfree:
kfree(drv->state); kfree(drv->state);
out: out:
return -ENOMEM; return retval;
} }
/** /**