[PATCH -next] usb: typec: ucsi: fix return value check in ucsi_acpi_probe()

[Yang Yingliang]

If memremap() fails, it never returns NULL. Replace NULL check
with IS_ERR().

Fixes: cdc3d2abf438 ("usb: typec: ucsi: acpi: Map the mailbox with memremap()")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
 drivers/usb/typec/ucsi/ucsi_acpi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
index 7455e3aff2be..8873c1644a29 100644
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -133,8 +133,8 @@ static int ucsi_acpi_probe(struct platform_device *pdev)
 	}
 
 	ua->base = devm_memremap(&pdev->dev, res->start, resource_size(res), MEMREMAP_WB);
-	if (!ua->base)
-		return -ENOMEM;
+	if (IS_ERR(ua->base))
+		return PTR_ERR(ua->base);
 
 	ret = guid_parse(UCSI_DSM_UUID, &ua->guid);
 	if (ret)
-- 
2.25.1