[PATCH] regulator: stm32-pwr: Fix error checking for of_iomap

[Axel Lin]

of_iomap returns NULL on error.

Signed-off-by: Axel Lin <axel....@ingics.com>
---
 drivers/regulator/stm32-pwr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/stm32-pwr.c b/drivers/regulator/stm32-pwr.c
index 222d593d76a2..dd5c2b383e5b 100644
--- a/drivers/regulator/stm32-pwr.c
+++ b/drivers/regulator/stm32-pwr.c
@@ -140,9 +140,9 @@ static int stm32_pwr_regulator_probe(struct platform_device 
*pdev)
        int i, ret = 0;
 
        base = of_iomap(np, 0);
-       if (IS_ERR(base)) {
+       if (!base) {
                dev_err(&pdev->dev, "Unable to map IO memory\n");
-               return PTR_ERR(base);
+               return -ENODEV;
        }
 
        config.dev = &pdev->dev;
-- 
2.17.1