From nobody Sun Oct 5 03:41:00 2025 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id CAE8F18CC13; Mon, 11 Aug 2025 07:35:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754897732; cv=none; b=sTMXPLFKXQGU5RfmPo3WA9EoK5McjEpa3qj7OqB6Qukzk3DaLT0lhdB/XFiXvOgQBxHek3+Q+cSwHNGquR8o0JgwOvqxU71U87fabpCcxvtmdEpLKNmDG+Ps1ug8kbOZpTEb7TtqUoqCsfnZGpDhDoOK5q3YaeF1SZxXOBiAsh0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754897732; c=relaxed/simple; bh=0SA+d//6r2BLFKt+VHFESbeYPrAreQqz9MhRTRLrRn4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=S7nJnFFIxrWC6LcAeyrzotyIs+oZ2ZGh1msBiNUg7a9VFeMBUVJrkXpq9+WtIax3gp33ke3QUUJJokukcy1IUoI6Tq4GCmGkIYbVHSjo+tzU82sZDKRyQZ579RQhqiT5MD/PoiTLq4G5oZQp+aZlAJwvJK/ie9XoJlWlJEk4xUg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8BxIK86nZloG1Q+AQ--.49809S3; Mon, 11 Aug 2025 15:35:22 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJCxdOQqnZloCJ9CAA--.53284S3; Mon, 11 Aug 2025 15:35:17 +0800 (CST) From: Tiezhu Yang To: Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Maxime Chevallier , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v3 1/3] net: stmmac: Check stmmac_hw_setup() in stmmac_resume() Date: Mon, 11 Aug 2025 15:35:04 +0800 Message-ID: <20250811073506.27513-2-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20250811073506.27513-1-yangtiezhu@loongson.cn> References: <20250811073506.27513-1-yangtiezhu@loongson.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJCxdOQqnZloCJ9CAA--.53284S3 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7Kr1kKr15AF4kuF4DWr43CFX_yoW8Jw13p3 y7Ca42grykJr1xXan8Jw48ZFyYgayxKFZrGayxJrs3uFsFkr9IqryaqrWYvF17WFyYqF13 tF4UC34Uu3WDXrcCm3ZEXasCq-sJn29KB7ZKAUJUUUU3529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBFb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r126r13M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVWxJr0_GcWl84ACjcxK6I8E87Iv6xkF7I0E14v2 6F4UJVW0owAaw2AFwI0_JF0_Jw1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqjxCEc2xF0c Ia020Ex4CE44I27wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E2Ix0cI8IcVAFwI0_Jw0_ WrylYx0Ex4A2jsIE14v26r4j6F4UMcvjeVCFs4IE7xkEbVWUJVW8JwACjcxG0xvY0x0EwI xGrwCY1x0262kKe7AKxVWUAVWUtwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWU JVW8JwCFI7km07C267AKxVWUAVWUtwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4 vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IY x2IY67AKxVW8JVW5JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26c xKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r4j6F4UMIIF0xvEx4A2jsIEc7CjxVAF wI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x07jr6p9UUUUU= Content-Type: text/plain; charset="utf-8" stmmac_hw_setup() may return 0 on success and an appropriate negative integer as defined in errno.h file on failure, just check it and then return early if failed in stmmac_resume(). Signed-off-by: Tiezhu Yang Reviewed-by: Maxime Chevallier Reviewed-by: Huacai Chen --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/ne= t/ethernet/stmicro/stmmac/stmmac_main.c index f1abf4242cd2..b2d87d3e4a65 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -7975,7 +7975,14 @@ int stmmac_resume(struct device *dev) stmmac_free_tx_skbufs(priv); stmmac_clear_descriptors(priv, &priv->dma_conf); =20 - stmmac_hw_setup(ndev, false); + ret =3D stmmac_hw_setup(ndev, false); + if (ret < 0) { + netdev_err(priv->dev, "%s: Hw setup failed\n", __func__); + mutex_unlock(&priv->lock); + rtnl_unlock(); + return ret; + } + stmmac_init_coalesce(priv); phylink_rx_clk_stop_block(priv->phylink); stmmac_set_rx_mode(ndev); --=20 2.42.0