[PATCH -next] usb: gadget: udc: lpc32xx: fix return value check in lpc32xx_udc_probe()

[Wei Yongjun]

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

This issue was detected by using the Coccinelle software.

Fixes: 408b56ca5c8e ("usb: gadget: udc: lpc32xx: simplify probe")
Signed-off-by: Wei Yongjun <weiyongj...@huawei.com>
---
 drivers/usb/gadget/udc/lpc32xx_udc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c 
b/drivers/usb/gadget/udc/lpc32xx_udc.c
index d8f1c60793ed..00fb79c6d025 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -3070,9 +3070,9 @@ static int lpc32xx_udc_probe(struct platform_device *pdev)
        }
 
        udc->udp_baseaddr = devm_ioremap_resource(dev, res);
-       if (!udc->udp_baseaddr) {
+       if (IS_ERR(udc->udp_baseaddr)) {
                dev_err(udc->dev, "IO map failure\n");
-               return -ENOMEM;
+               return PTR_ERR(udc->udp_baseaddr);
        }
 
        /* Get USB device clock */