linux-kernel - [PATCH] usb: Use IS_ERR_OR_NULL() instead of IS

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Date:   Fri,  6 Nov 2020 11:31:18 +0800
From:   Wang Qing <wangqing@...o.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Wang Qing <wangqing@...o.com>
Subject: [PATCH] usb: Use IS_ERR_OR_NULL() instead of IS_ERR()

__usb_find_phy may return NULL, so we should use IS_ERR_OR_NULL()

Signed-off-by: Wang Qing <wangqing@...o.com>
---
 drivers/usb/phy/phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index de21967..60c5ea4 100755
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -460,7 +460,7 @@ struct usb_phy *usb_get_phy(enum usb_phy_type type)
 	spin_lock_irqsave(&phy_lock, flags);
 
 	phy = __usb_find_phy(&phy_list, type);
-	if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
+	if (IS_ERR_OR_NULL(phy) || !try_module_get(phy->dev->driver->owner)) {
 		pr_debug("PHY: unable to find transceiver of type %s\n",
 			usb_phy_type_string(type));
 		if (!IS_ERR(phy))
-- 
2.7.4