[PATCH v3 4/4] serial: 8250: Don't check for mctrl_gpio_init() returning -ENOSYS

[Schrempf Frieder]

From: Frieder Schrempf <frieder.schre...@kontron.de>

Now that the mctrl_gpio code returns NULL instead of ERR_PTR(-ENOSYS)
if CONFIG_GPIOLIB is disabled, we can safely remove this check.

Signed-off-by: Frieder Schrempf <frieder.schre...@kontron.de>
---
Changes in v3
=============
* Adjust the commit message and subject line

Changes in v2
=============
* Add a patch for the 8250 driver
---
 drivers/tty/serial/8250/8250_core.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_core.c 
b/drivers/tty/serial/8250/8250_core.c
index df3bcc0b2d74..e682390ce0de 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1026,10 +1026,8 @@ int serial8250_register_8250_port(struct uart_8250_port 
*up)
                if (!has_acpi_companion(uart->port.dev)) {
                        gpios = mctrl_gpio_init(&uart->port, 0);
                        if (IS_ERR(gpios)) {
-                               if (PTR_ERR(gpios) != -ENOSYS) {
-                                       ret = PTR_ERR(gpios);
-                                       goto out_unlock;
-                               }
+                               ret = PTR_ERR(gpios);
+                               goto out_unlock;
                        } else {
                                uart->gpios = gpios;
                        }
-- 
2.17.1