linux-kernel - [PATCH v3 2/2] phy: renesas: rcar-gen3-usb2: exit if request

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Message-Id: <1594986297-12434-3-git-send-email-yoshihiro.shimoda.uh@renesas.com>
Date:   Fri, 17 Jul 2020 20:44:57 +0900
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     kishon@...com, vkoul@...nel.org
Cc:     wsa+renesas@...g-engineering.com, geert+renesas@...der.be,
        linux-renesas-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Subject: [PATCH v3 2/2] phy: renesas: rcar-gen3-usb2: exit if request_irq() failed

To avoid unexpected behaviors, it's better to exit if request_irq()
failed.

Suggested-by: Vinod Koul <vkoul@...nel.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
---
 drivers/phy/renesas/phy-rcar-gen3-usb2.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/renesas/phy-rcar-gen3-usb2.c b/drivers/phy/renesas/phy-rcar-gen3-usb2.c
index 5087b7c..e34e447 100644
--- a/drivers/phy/renesas/phy-rcar-gen3-usb2.c
+++ b/drivers/phy/renesas/phy-rcar-gen3-usb2.c
@@ -419,8 +419,10 @@ static int rcar_gen3_phy_usb2_init(struct phy *p)
 		INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work);
 		ret = request_irq(channel->irq, rcar_gen3_phy_usb2_irq,
 				  IRQF_SHARED, dev_name(channel->dev), channel);
-		if (ret < 0)
+		if (ret < 0) {
 			dev_err(channel->dev, "No irq handler (%d)\n", channel->irq);
+			return ret;
+		}
 	}
 
 	/* Initialize USB2 part */
-- 
2.7.4