[PATCH 1/2] bus: fsl-mc: add back accidentally dropped error check

[Laurentiu Tudor]

A previous patch accidentally dropped an error check, so add it back.

Fixes: aef85b56c3c1 ("bus: fsl-mc: MC control registers are not always 
available")
Signed-off-by: Laurentiu Tudor <laurentiu.tu...@nxp.com>
---
 drivers/bus/fsl-mc/fsl-mc-bus.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 76a6ee505d33..806766b1b45f 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -967,8 +967,11 @@ static int fsl_mc_bus_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, mc);
 
        plat_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-       if (plat_res)
+       if (plat_res) {
                mc->fsl_mc_regs = devm_ioremap_resource(&pdev->dev, plat_res);
+               if (IS_ERR(mc->fsl_mc_regs))
+                       return PTR_ERR(mc->fsl_mc_regs);
+       }
 
        if (mc->fsl_mc_regs && IS_ENABLED(CONFIG_ACPI) &&
            !dev_of_node(&pdev->dev)) {
-- 
2.17.1