serial: amba-pl011: Fix devm_ioremap_resource return value check

[firefly-linux-kernel-4.4.55.git] / drivers / tty / serial / amba-pl011.c

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 50cf5b10ceed98022cbc44609acd280ef2beba81..fd27e986b1dd3437dfd2560ec11efd8def7bf254 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2310,8 +2310,8 @@ static int pl011_setup_port(struct device *dev, struct uart_amba_port *uap,
        void __iomem *base;
 
        base = devm_ioremap_resource(dev, mmiobase);
-       if (!base)
-               return -ENOMEM;
+       if (IS_ERR(base))
+               return PTR_ERR(base);
 
        index = pl011_probe_dt_alias(index, dev);