From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f49.google.com (mail-wr1-f49.google.com [209.85.221.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 777AB4078D3 for ; Sun, 4 Oct 2026 10:07:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791108475; cv=none; b=oYPNtU87ZEGVpR2uH358oPrvFkRfv1fkCCFk7lifUmUtiqy2Zux+57F/i3s5qdcHy0xWDyW+80KuNamsDK850UdspplMH2I8D1xWgK+nbHOJK2U4PK8qiu0K5i+8Mn/No9h4PXgrLPdc0EOShJXb4udT2TqN9oa6Q7EdiuyWmZ0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791108475; c=relaxed/simple; bh=kKxpjMyiHK9lV9OtcBaphCHIS0puTCLcWrgvqpO3mqs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KcaNt9fWGpU1jtCh9ArzA4L1L+7TafvvCotnHcZRHzTULMLjMgvlXEpM+m0PiUsgfROssjnyqRmsHkZX7qYe3UQRXhpxB+rdS1jprSZIUk8AzuzUFIYVZqDT4H+q9BlEgWpzBo6xm/9QD2AfJdPmGjlhxLKCA6ZujIjGOsJ1VCM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=aB5kz36u; arc=none smtp.client-ip=209.85.221.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="aB5kz36u" Received: by mail-wr1-f49.google.com with SMTP id ffacd0b85a97d-48b9d8055dfso656800f8f.3 for ; Sun, 04 Oct 2026 03:07:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1791108472; x=1791713272; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=/lwakMGT3g+t2lkoiIlXbmB0IFTfs1dS2fNYFlIz4+A=; b=aB5kz36ucnLKAP1jt5BMCSeb09oAFnlQHYHQYcy4/GrIt5NCY73BJlWaQy5ydaVG6O kfcBbHtykA4abkAGWNMPGbHUyo0y+3zgX29/ztxjEKd8hQW+2N+3uDsiXf7xDYMXZl2c UEiaNGRhMwKcEfhVUiPNg+sjqxGQF4b1m2/N0sOBC780ChEFzvnutjWJhckOyHqEBnmK XP0lEAT9aVTJYmo2m7OthIO+/gB0Kjn5TVdfQNWqx0GDJdLOpZ7oSMe1K+b1cloTJR+2 Qxys7g1Zxw97W6MXVXZelKv4fACPCPM2VycoEDpSMEcb/nMJFDMWAtxujBNZEFCnvWo1 ndoQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1791108472; x=1791713272; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=/lwakMGT3g+t2lkoiIlXbmB0IFTfs1dS2fNYFlIz4+A=; b=g+ldrPX3oFqy4CX66R1nAKm3ter3USiwWxtIdfl0KUm4Y67QK3U/HZErp24ppL8X2n RrvXP1swUIvcbTfzUpTfdFbePZIYCv3COx87KB73MGy3+0rdyvx6nPIzfeoDfb+JxXoN sN3mjb2adI5yCsSfmY9OWTcvpaCGnulryWPsuveSK8OBlLVtebzYI9u4AV8JsydNPzSq W0xKG0yxGZiaYI0+ALf5MIlmM/lyzz5Ypdl1s4l+3doiVimtkVcptAqFJZ4EutJPdLCX GcEcF2sC2zpqAPOLiz7rAbbKH+Ugk7V2en85qWInX4065P3l4FFfAx54Nni8BaWe42Zl lEOA== X-Forwarded-Encrypted: i=1; AKwUvBxSZZqge9jtrbKOcajOyLCc8zhqABygSHz17HTKInFfXdgiABOyTtDUqJyIwNLkBseSiXtGlmbXi4igrAA=@vger.kernel.org X-Gm-Message-State: AFq9FYK4d7WHXWmzQZVCg8wqUuqfgSeMhz9/TnsEwFruSzCmAXE/rj25 wF3dhV8KL4a9e4Zlzi/3dpge+NXbs1Md4cjUiztg8yCQzO0q9epgk1kJ X-Gm-Gg: AYBFou3ZDH5omzkfi/bVsxNnR8msRQ/oEQahc+Ay7kB2Zh92jd0qKX7aSuObExA4WiI h4Ul1wght9C4LgV8BshqKZXlS5/Wyl+Xn6BklM/3nfkYHXSfbsvgHW7hJvxSg1Tp2GMzPhttj54 1gysvmD/oEGITnngntEl34ta8cVk+n0WEkkn6PIiwyAsTdY/tJLzNQGTro9bj2JLjRMXcVd1zxC 7l0iDDqlJ6I+lqA01y7ZemldqP0GswHvjWr+0lEauO1tklLJQlFVx7srE+wqOo1sXIFikwtwkkp pGsXXgQ0EmRkL1ZtIUPEM/N902NUIXlBC8yKUhBu6vz2aVDw9ZjOktLWBqRhGxKCz2fyATKVjuO Q2tm+7U06HFYeWOtiNrDg93/Vjpo0BiM8syKr+8WLwWb4Wi6OVlfUNh9rj3DxTiJmD62zY7Sv/G YAfqCjH42VajqaGkTFO2E8LnoagCBbN65yZRCFMmJ9MFX63JGcdgRNlxQA79Gv2uE8RDTiCQUUW BZuOgrwyI8ocoVkY0zNyILtkqTqdRGmdO7Vk0xCI55aWpP+xITF7dd6BVx7ytrHUC7KKjhz+hJ4 S2wKbRHcBvJvrqzM+7cxSHkpGHTHIMNISYVVtawTwTJd8jR3XzxZP6TTCmSJ4mNO1dDWuh6Y1av PM+waepkYI0SeYiaX7SXlWL4yLthfV/g= X-Received: by 2002:a05:6000:2610:b0:48a:f511:e418 with SMTP id ffacd0b85a97d-48c48010c2dmr6844621f8f.38.1791108471535; Sun, 04 Oct 2026 03:07:51 -0700 (PDT) Received: from localhost.localdomain (dynamic-2a00-1028-c000-0ddf-b17d-de75-1ac4-0a1a.ipv6.o2.cz. [2a00:1028:c000:ddf:b17d:de75:1ac4:a1a]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48b38104602sm18136032f8f.26.2026.10.04.03.07.50 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 04 Oct 2026 03:07:51 -0700 (PDT) From: Josef Schlehofer To: Mauro Carvalho Chehab Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Hyunwoo Kim , Hans Verkuil Subject: [PATCH v2 2/6] media: az6007: propagate USB errors from I2C transfers Date: Sun, 4 Oct 2026 12:07:37 +0200 Message-ID: <20261004100741.71711-3-pepe.schlehofer@gmail.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20261004100741.71711-1-pepe.schlehofer@gmail.com> References: <20261004100741.71711-1-pepe.schlehofer@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit __az6007_read(), __az6007_write() and az6007_i2c_xfer() currently map usb_control_msg() failures to -EIO. After disconnect, USB reports -ENODEV, but drxk cannot distinguish a gone device from a transfer error. Propagate the error reported by usb_control_msg() instead. Keep short transfers mapped to -EIO as before. This lets drxk stop retrying and accessing the device after disconnect. Signed-off-by: Josef Schlehofer --- drivers/media/usb/dvb-usb-v2/az6007.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/media/usb/dvb-usb-v2/az6007.c b/drivers/media/usb/dvb-usb-v2/az6007.c index 4ce1afe01c3b..5449ceda87e8 100644 --- a/drivers/media/usb/dvb-usb-v2/az6007.c +++ b/drivers/media/usb/dvb-usb-v2/az6007.c @@ -109,7 +109,7 @@ static int __az6007_read(struct usb_device *udev, u8 req, u16 value, value, index, b, blen, 5000); if (ret < 0) { pr_warn("usb read operation failed. (%d)\n", ret); - return -EIO; + return ret; } if (az6007_xfer_debug) { @@ -163,7 +163,7 @@ static int __az6007_write(struct usb_device *udev, u8 req, u16 value, value, index, b, blen, 5000); if (ret != blen) { pr_err("usb write operation failed. (%d)\n", ret); - return -EIO; + return ret < 0 ? ret : -EIO; } return 0; @@ -782,8 +782,9 @@ static int az6007_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], if (ret >= len) { for (j = 0; j < len; j++) msgs[i + 1].buf[j] = st->data[j + 5]; - } else + } else if (ret >= 0) { ret = -EIO; + } i++; } else if (!(msgs[i].flags & I2C_M_RD)) { /* write bytes */ -- 2.54.0 (Apple Git-157)