mfd: intel-lpss: Add missing check for platform_get_resource

[ Upstream commit d918e0d5824495a75d00b879118b098fcab36fdb ]

Add the missing check for platform_get_resource and return error
if it fails.

Fixes: 4b45efe85263 ("mfd: Add support for Intel Sunrisepoint LPSS devices")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230609014818.28475-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/mfd/intel-lpss-acpi.c b/drivers/mfd/intel-lpss-acpi.c
index a143c8d..212818a 100644 (file)
--- a/drivers/mfd/intel-lpss-acpi.c
+++ b/drivers/mfd/intel-lpss-acpi.c
@@ -183,6 +183,9 @@ static int intel_lpss_acpi_probe(struct platform_device *pdev)
                return -ENOMEM;
 
        info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+       if (!info->mem)
+               return -ENODEV;
+
        info->irq = platform_get_irq(pdev, 0);
 
        ret = intel_lpss_probe(&pdev->dev, info);