serial: fsl_lpuart: Remove unneeded check for 'res'

'res' will be automatically checked inside devm_ioremap_resource(), so there is
no need to explicitly perform a NULL check.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Jingchang Lu <jingchang.lu@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 4e2577249ac5..73d939c0825a 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1786,15 +1786,13 @@ static int lpuart_probe(struct platform_device *pdev)
         }
         sport->port.line = ret;
         sport->lpuart32 = of_device_is_compatible(np, "fsl,ls1021a-lpuart");
-        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-        if (!res)
-                return -ENODEV;
 
-        sport->port.mapbase = res->start;
+        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         sport->port.membase = devm_ioremap_resource(&pdev->dev, res);
         if (IS_ERR(sport->port.membase))
                 return PTR_ERR(sport->port.membase);
 
+        sport->port.mapbase = res->start;
         sport->port.dev = &pdev->dev;
         sport->port.type = PORT_LPUART;
         sport->port.iotype = UPIO_MEM;