From patchwork Tue Dec 3 07:21:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oleksij Rempel X-Patchwork-Id: 13891807 X-Patchwork-Delegate: kuba@kernel.org Received: from metis.whiteo.stw.pengutronix.de (metis.whiteo.stw.pengutronix.de [185.203.201.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3EFE518FDAE for ; Tue, 3 Dec 2024 07:22:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.203.201.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733210534; cv=none; b=i9myczjcsUKijnTZqCIyVIePnAtMaShGP67zwAu+HGR1OSs03ciySZQcttguoift4BrFjRjtOpmQ01B2+khanTn06uitcU3gqdysUV8PMdz3qo6ncRCpvetS5qxg4pjowHlf7VIvNf/tq1HoPzdm3JZulOYb7Ti+j2J83ih7na4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733210534; c=relaxed/simple; bh=kCCfcs5qWKbWNrkYGX7ewBGKk+ZoMqqsF7UlhigcN4o=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=lwj15E8YKVofU5c1zB9mKod7zYlHLVB2Knk3NnbNb4Y7wyuy9msaIPj3aJqehK4dilQM2Bz52cC0cyXGOg09ojrDPTQOqyd7BKs77k8UxSKmpzBmtXLh37ZLsqiUGlk2ek1WZQirl2r5YYiay64S6IOFfw2Z4KR9nYkLt1+Qs6c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de; spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=pengutronix.de Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tINEP-0004sH-MH; Tue, 03 Dec 2024 08:22:01 +0100 Received: from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tINEJ-001QzI-1N; Tue, 03 Dec 2024 08:21:56 +0100 Received: from ore by dude04.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1tINEK-00AEpd-00; Tue, 03 Dec 2024 08:21:56 +0100 From: Oleksij Rempel To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Woojung Huh , Andrew Lunn Cc: Oleksij Rempel , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com, Phil Elwell Subject: [PATCH net-next v1 19/21] net: usb: lan78xx: Improve error handling in lan78xx_phy_wait_not_busy Date: Tue, 3 Dec 2024 08:21:52 +0100 Message-Id: <20241203072154.2440034-20-o.rempel@pengutronix.de> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20241203072154.2440034-1-o.rempel@pengutronix.de> References: <20241203072154.2440034-1-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: ore@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Update `lan78xx_phy_wait_not_busy` to forward errors from `lan78xx_read_reg` instead of overwriting them with `-EIO`. Replace `-EIO` with `-ETIMEDOUT` for timeout cases, providing more specific and appropriate error codes. Signed-off-by: Oleksij Rempel --- drivers/net/usb/lan78xx.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index fdeb95db529b..9852526be002 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -961,14 +961,14 @@ static int lan78xx_phy_wait_not_busy(struct lan78xx_net *dev) do { ret = lan78xx_read_reg(dev, MII_ACC, &val); - if (unlikely(ret < 0)) - return -EIO; + if (ret < 0) + return ret; if (!(val & MII_ACC_MII_BUSY_)) return 0; } while (!time_after(jiffies, start_time + HZ)); - return -EIO; + return -ETIMEDOUT; } static inline u32 mii_access(int id, int index, int read)