platform/x86: intel-hid: Fix return value check in check_acpi_dev()
authorLu Wei <luwei32@huawei.com>
Fri, 10 Jul 2020 09:30:17 +0000 (17:30 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 21 Aug 2020 09:01:57 +0000 (11:01 +0200)
[ Upstream commit 71fbe886ce6dd0be17f20aded9c63fe58edd2806 ]

In the function check_acpi_dev(), if it fails to create
platform device, the return value is ERR_PTR() or NULL.
Thus it must use IS_ERR_OR_NULL() to check return value.

Fixes: ecc83e52b28c ("intel-hid: new hid event driver for hotkeys")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Lu Wei <luwei32@huawei.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/platform/x86/intel-hid.c

index 12dbb50633761b40253adff49f0c3881b40fed90..a5c645b9e3f2a0e5f0fd5ae33887d10c423f13f4 100644 (file)
@@ -264,7 +264,7 @@ check_acpi_dev(acpi_handle handle, u32 lvl, void *context, void **rv)
                return AE_OK;
 
        if (acpi_match_device_ids(dev, ids) == 0)
-               if (acpi_create_platform_device(dev, NULL))
+               if (!IS_ERR_OR_NULL(acpi_create_platform_device(dev, NULL)))
                        dev_info(&dev->dev,
                                 "intel-hid: created platform device\n");