usb: chipidea: fix return value check in ci_hdrc_pci_probe()

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

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

diff --git a/drivers/usb/chipidea/ci_hdrc_pci.c b/drivers/usb/chipidea/ci_hdrc_pci.c
index b59195e..b635ab6 100644 (file)
--- a/drivers/usb/chipidea/ci_hdrc_pci.c
+++ b/drivers/usb/chipidea/ci_hdrc_pci.c
@@ -85,8 +85,8 @@ static int ci_hdrc_pci_probe(struct pci_dev *pdev,
 
        /* register a nop PHY */
        ci->phy = usb_phy_generic_register();
-       if (!ci->phy)
-               return -ENOMEM;
+       if (IS_ERR(ci->phy))
+               return PTR_ERR(ci->phy);
 
        memset(res, 0, sizeof(res));
        res[0].start    = pci_resource_start(pdev, 0);