hwspinlock: fix return value check in stm32_hwspinlock_probe()

[linux] / drivers / hwspinlock / stm32_hwspinlock.c

diff --git a/drivers/hwspinlock/stm32_hwspinlock.c b/drivers/hwspinlock/stm32_hwspinlock.c
index 34a8e00..4418392 100644 (file)
--- a/drivers/hwspinlock/stm32_hwspinlock.c
+++ b/drivers/hwspinlock/stm32_hwspinlock.c
@@ -57,8 +57,8 @@ static int stm32_hwspinlock_probe(struct platform_device *pdev)
 
        res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        io_base = devm_ioremap_resource(&pdev->dev, res);
-       if (!io_base)
-               return -ENOMEM;
+       if (IS_ERR(io_base))
+               return PTR_ERR(io_base);
 
        array_size = STM32_MUTEX_NUM_LOCKS * sizeof(struct hwspinlock);
        hw = devm_kzalloc(&pdev->dev, sizeof(*hw) + array_size, GFP_KERNEL);