[PATCH AUTOSEL 4.14 10/14] platform/x86: intel-hid: Fix return value check in check_acpi_dev()

From: Sasha Levin
Date: Sat Aug 08 2020 - 19:41:50 EST

From: Lu Wei <luwei32@xxxxxxxxxx>

[ 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@xxxxxxxxxx>
Signed-off-by: Lu Wei <luwei32@xxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
drivers/platform/x86/intel-hid.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/intel-hid.c b/drivers/platform/x86/intel-hid.c
index e34fd70b67afe..3add7b3f9658b 100644
--- a/drivers/platform/x86/intel-hid.c
+++ b/drivers/platform/x86/intel-hid.c
@@ -366,7 +366,7 @@ 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)))
"intel-hid: created platform device\n");