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[34.86.135.125]) by smtp.gmail.com with ESMTPSA id af79cd13be357-794abca58e6sm329740885a.18.2024.05.27.15.14.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 May 2024 15:14:53 -0700 (PDT) From: Ricardo Ribalda Date: Mon, 27 May 2024 22:14:45 +0000 Subject: [PATCH 1/3] media: pci/ivtv: Replace ioremap with devm_ variants Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240527-devm-itv-v1-1-f5829b8e7674@chromium.org> References: <20240527-devm-itv-v1-0-f5829b8e7674@chromium.org> In-Reply-To: <20240527-devm-itv-v1-0-f5829b8e7674@chromium.org> To: Andy Walls , Mauro Carvalho Chehab Cc: Hans Verkuil , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.12.4 With Managed Device Resources the error handling is simpler. The following smatch warning is silenced: drivers/media/pci/ivtv/ivtv-driver.c: drivers/media/pci/ivtv/ivtv-driver.c:= 1296 ivtv_probe() warn: 'itv->dec_mem' from ioremap() not released on lines= : 1296. drivers/media/pci/ivtv/ivtv-driver.c: drivers/media/pci/ivtv/ivtv-driver.c:= 1296 ivtv_probe() warn: 'itv->enc_mem' from ioremap() not released on lines= : 1296. Signed-off-by: Ricardo Ribalda --- drivers/media/pci/ivtv/ivtv-driver.c | 51 +++++++++-----------------------= ---- 1 file changed, 12 insertions(+), 39 deletions(-) diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/= ivtv-driver.c index ba503d820e48..7599fffb0c9d 100644 --- a/drivers/media/pci/ivtv/ivtv-driver.c +++ b/drivers/media/pci/ivtv/ivtv-driver.c @@ -371,33 +371,6 @@ int ivtv_msleep_timeout(unsigned int msecs, int intr) return 0; } =20 -/* Release ioremapped memory */ -static void ivtv_iounmap(struct ivtv *itv) -{ - if (itv =3D=3D NULL) - return; - - /* Release registers memory */ - if (itv->reg_mem !=3D NULL) { - IVTV_DEBUG_INFO("releasing reg_mem\n"); - iounmap(itv->reg_mem); - itv->reg_mem =3D NULL; - } - /* Release io memory */ - if (itv->has_cx23415 && itv->dec_mem !=3D NULL) { - IVTV_DEBUG_INFO("releasing dec_mem\n"); - iounmap(itv->dec_mem); - } - itv->dec_mem =3D NULL; - - /* Release io memory */ - if (itv->enc_mem !=3D NULL) { - IVTV_DEBUG_INFO("releasing enc_mem\n"); - iounmap(itv->enc_mem); - itv->enc_mem =3D NULL; - } -} - /* Hauppauge card? get values from tveeprom */ void ivtv_read_eeprom(struct ivtv *itv, struct tveeprom *tv) { @@ -1041,8 +1014,9 @@ static int ivtv_probe(struct pci_dev *pdev, const str= uct pci_device_id *pci_id) /* map io memory */ IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", (u64)itv->base_addr + IVTV_ENCODER_OFFSET, IVTV_ENCODER_SIZE); - itv->enc_mem =3D ioremap(itv->base_addr + IVTV_ENCODER_OFFSET, - IVTV_ENCODER_SIZE); + itv->enc_mem =3D devm_ioremap(&pdev->dev, + itv->base_addr + IVTV_ENCODER_OFFSET, + IVTV_ENCODER_SIZE); if (!itv->enc_mem) { IVTV_ERR("ioremap failed. Can't get a window into CX23415/6 encoder memo= ry\n"); IVTV_ERR("Each capture card with a CX23415/6 needs 8 MB of vmalloc addre= ss space for this window\n"); @@ -1055,8 +1029,9 @@ static int ivtv_probe(struct pci_dev *pdev, const str= uct pci_device_id *pci_id) if (itv->has_cx23415) { IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", (u64)itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE); - itv->dec_mem =3D ioremap(itv->base_addr + IVTV_DECODER_OFFSET, - IVTV_DECODER_SIZE); + itv->dec_mem =3D devm_ioremap(&pdev->dev, + itv->base_addr + IVTV_DECODER_OFFSET, + IVTV_DECODER_SIZE); if (!itv->dec_mem) { IVTV_ERR("ioremap failed. Can't get a window into CX23415 decoder memor= y\n"); IVTV_ERR("Each capture card with a CX23415 needs 8 MB of vmalloc addres= s space for this window\n"); @@ -1073,26 +1048,27 @@ static int ivtv_probe(struct pci_dev *pdev, const s= truct pci_device_id *pci_id) /* map registers memory */ IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", (u64)itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); - itv->reg_mem =3D - ioremap(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); + itv->reg_mem =3D devm_ioremap(&pdev->dev, + itv->base_addr + IVTV_REG_OFFSET, + IVTV_REG_SIZE); if (!itv->reg_mem) { IVTV_ERR("ioremap failed. Can't get a window into CX23415/6 register spa= ce\n"); IVTV_ERR("Each capture card with a CX23415/6 needs 64 kB of vmalloc addr= ess space for this window\n"); IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n"); IVTV_ERR("Use the vmalloc=3D kernel command line option to set VmallocTo= tal to a larger value\n"); retval =3D -ENOMEM; - goto free_io; + goto free_mem; } =20 retval =3D ivtv_gpio_init(itv); if (retval) - goto free_io; + goto free_mem; =20 /* active i2c */ IVTV_DEBUG_INFO("activating i2c...\n"); if (init_ivtv_i2c(itv)) { IVTV_ERR("Could not initialize i2c\n"); - goto free_io; + goto free_mem; } =20 if (itv->card->hw_all & IVTV_HW_TVEEPROM) { @@ -1277,8 +1253,6 @@ static int ivtv_probe(struct pci_dev *pdev, const str= uct pci_device_id *pci_id) free_i2c: v4l2_ctrl_handler_free(&itv->cxhdl.hdl); exit_ivtv_i2c(itv); -free_io: - ivtv_iounmap(itv); free_mem: release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); @@ -1439,7 +1413,6 @@ static void ivtv_remove(struct pci_dev *pdev) exit_ivtv_i2c(itv); =20 free_irq(itv->pdev->irq, (void *)itv); - ivtv_iounmap(itv); =20 release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); --=20 2.45.1.288.g0e0cd299f1-goog From nobody Fri Feb 13 11:54:15 2026 Received: from mail-qk1-f173.google.com (mail-qk1-f173.google.com [209.85.222.173]) (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 04E22168C0F for ; Mon, 27 May 2024 22:14:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716848097; cv=none; b=TRYUDCnxIbaLI5sJma6pi3JVfUHuT222wh+5uVREEWUl7qPrIU/M6kMMSl6D7q9Ia4ea6XtfIbMnPMKsHvukBySgzOVf39Zy8PmUbWXm1G1szFzlmhuMkN4H1ckjVQcxQj65VGA3K2GYIykkA6EqPAJJHiWN7maWWazKCxw9Nzo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716848097; c=relaxed/simple; bh=j5oibcSxm589l45pASxdb6FBfqDZis92OeGGMsGwS5E=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=UnstKAfi/HfWqS/+wza+PSflzINbmyV3Nzs0tA2uV6WCsAPVuQcLlPPSZeHC0TA4fABlo7IFbWNOGOPgvEivx3FiZLtoYnkIjbcaoyDCm37FQKGwTgalbjogDKHuEouHp6yhlIkV1P2xVBhYFi6DRQiAoN9KBjkUY4wGyGQjK3Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=hV0TiAH4; arc=none smtp.client-ip=209.85.222.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="hV0TiAH4" Received: by mail-qk1-f173.google.com with SMTP id af79cd13be357-794ab0eb68cso266823585a.0 for ; Mon, 27 May 2024 15:14:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1716848095; x=1717452895; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=8jUWOrWtAumoYo2sLzptzNq1yzATfRDQ5UlFzB+phU8=; b=hV0TiAH4JtvZbNjrd+EdHK8MTCdVgwhE0oaYfGd8P7L6NQwLsfXzlK++jauXTcgryS MiA21iMYbBKtx8njq/EOsyWpsnNiOI5wlfs8FCkh+lryTU2tBjznboVS0SBgubkBozY1 huaEa2E5C9Oz6eSKP7kOHzh2CdYh6L/pWYSwk= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716848095; x=1717452895; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=8jUWOrWtAumoYo2sLzptzNq1yzATfRDQ5UlFzB+phU8=; b=Sq3zO53THN3u2KvmaQiL7iXB2O52wfyTcKmfN6/nOu09BvjkP183GCKH1NB7OYU5mj zUn5lcBpKxEkJ8wcLJkoUD5JAZFE8gwgrXQsagz2oACMp5pTniXLOK2wyJiZ1l4iym23 CZ+KJU73j1R02XsdbXUl5OK7H6ze2oz6EDGyz7CR3fRgATBXvMRfCeeY7Tc4n+qpf5xO 2xHFgTsHIca+9x3pK2V7QUNyDWy9PCEu03dN0hpo16cN2lPoEP4WfxlWdcBGwcdK2jIM p5k4HgPsJ8dZ3c+TS3Kt4Fdw4ojBpo5ScyZ+cxxfe1gqJ0UNunex4V9eQRNcOEwkVC3L 53pQ== X-Forwarded-Encrypted: i=1; AJvYcCVXhTMk1WW1OSSXaNVV3buL420f7XL7HDMklDyf0B5IOzR5+nmn9ieYpsT2CbXflfgPzr195V8FTVXGS3tbaE5vpkYhyE+c1AvNQEf6 X-Gm-Message-State: AOJu0YzPvA9JP3h9oxhJDTVp+Cq8idytW20RFA9ThhTCfvrQzh6lVCOG OMBOM9GZ0Lmw6X7+XW3MItslZSJfCrBkzxTYgpNpNv4EoXXYvf9e4JGPoujldg== X-Google-Smtp-Source: AGHT+IH61nEbsekzVgq75aSLN9qBFGg8M7QYRex7VvK2gWNTLHBeGwYaWZIgZ47+V7LN3MEcjYOvvw== X-Received: by 2002:a05:620a:5816:b0:790:9f13:2ed0 with SMTP id af79cd13be357-794aa7ec9b7mr1708984285a.22.1716848094986; Mon, 27 May 2024 15:14:54 -0700 (PDT) Received: from denia.c.googlers.com (125.135.86.34.bc.googleusercontent.com. [34.86.135.125]) by smtp.gmail.com with ESMTPSA id af79cd13be357-794abca58e6sm329740885a.18.2024.05.27.15.14.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 May 2024 15:14:54 -0700 (PDT) From: Ricardo Ribalda Date: Mon, 27 May 2024 22:14:46 +0000 Subject: [PATCH 2/3] media: pci/ivtv: Replace request_mem_region with devm_ variant Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240527-devm-itv-v1-2-f5829b8e7674@chromium.org> References: <20240527-devm-itv-v1-0-f5829b8e7674@chromium.org> In-Reply-To: <20240527-devm-itv-v1-0-f5829b8e7674@chromium.org> To: Andy Walls , Mauro Carvalho Chehab Cc: Hans Verkuil , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.12.4 The managed device resource version of the function greatly simplifies the error handling. Signed-off-by: Ricardo Ribalda --- drivers/media/pci/ivtv/ivtv-driver.c | 45 +++++++++++---------------------= ---- 1 file changed, 14 insertions(+), 31 deletions(-) diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/= ivtv-driver.c index 7599fffb0c9d..96f40c9685d2 100644 --- a/drivers/media/pci/ivtv/ivtv-driver.c +++ b/drivers/media/pci/ivtv/ivtv-driver.c @@ -814,24 +814,24 @@ static int ivtv_setup_pci(struct ivtv *itv, struct pc= i_dev *pdev, IVTV_ERR("No suitable DMA available.\n"); return -EIO; } - if (!request_mem_region(itv->base_addr, IVTV_ENCODER_SIZE, "ivtv encoder"= )) { + if (!devm_request_mem_region(&pdev->dev, itv->base_addr, + IVTV_ENCODER_SIZE, "ivtv encoder")) { IVTV_ERR("Cannot request encoder memory region.\n"); return -EIO; } =20 - if (!request_mem_region(itv->base_addr + IVTV_REG_OFFSET, - IVTV_REG_SIZE, "ivtv registers")) { + if (!devm_request_mem_region(&pdev->dev, + itv->base_addr + IVTV_REG_OFFSET, + IVTV_REG_SIZE, "ivtv registers")) { IVTV_ERR("Cannot request register memory region.\n"); - release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); return -EIO; } =20 if (itv->has_cx23415 && - !request_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, - IVTV_DECODER_SIZE, "ivtv decoder")) { + !devm_request_mem_region(&pdev->dev, + itv->base_addr + IVTV_DECODER_OFFSET, + IVTV_DECODER_SIZE, "ivtv decoder")) { IVTV_ERR("Cannot request decoder memory region.\n"); - release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); - release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); return -EIO; } =20 @@ -843,11 +843,6 @@ static int ivtv_setup_pci(struct ivtv *itv, struct pci= _dev *pdev, pci_read_config_word(pdev, PCI_COMMAND, &cmd); if (!(cmd & PCI_COMMAND_MASTER)) { IVTV_ERR("Bus Mastering is not enabled\n"); - if (itv->has_cx23415) - release_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, - IVTV_DECODER_SIZE); - release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); - release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); return -ENXIO; } } @@ -1006,10 +1001,8 @@ static int ivtv_probe(struct pci_dev *pdev, const st= ruct pci_device_id *pci_id) =20 /* PCI Device Setup */ retval =3D ivtv_setup_pci(itv, pdev, pci_id); - if (retval =3D=3D -EIO) + if (retval =3D=3D -EIO || retval =3D=3D -ENXIO) goto free_worker; - if (retval =3D=3D -ENXIO) - goto free_mem; =20 /* map io memory */ IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", @@ -1023,7 +1016,7 @@ static int ivtv_probe(struct pci_dev *pdev, const str= uct pci_device_id *pci_id) IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n"); IVTV_ERR("Use the vmalloc=3D kernel command line option to set VmallocTo= tal to a larger value\n"); retval =3D -ENOMEM; - goto free_mem; + goto free_worker; } =20 if (itv->has_cx23415) { @@ -1038,7 +1031,7 @@ static int ivtv_probe(struct pci_dev *pdev, const str= uct pci_device_id *pci_id) IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n"); IVTV_ERR("Use the vmalloc=3D kernel command line option to set VmallocT= otal to a larger value\n"); retval =3D -ENOMEM; - goto free_mem; + goto free_worker; } } else { @@ -1057,18 +1050,18 @@ static int ivtv_probe(struct pci_dev *pdev, const s= truct pci_device_id *pci_id) IVTV_ERR("Check the output of 'grep Vmalloc /proc/meminfo'\n"); IVTV_ERR("Use the vmalloc=3D kernel command line option to set VmallocTo= tal to a larger value\n"); retval =3D -ENOMEM; - goto free_mem; + goto free_worker; } =20 retval =3D ivtv_gpio_init(itv); if (retval) - goto free_mem; + goto free_worker; =20 /* active i2c */ IVTV_DEBUG_INFO("activating i2c...\n"); if (init_ivtv_i2c(itv)) { IVTV_ERR("Could not initialize i2c\n"); - goto free_mem; + goto free_worker; } =20 if (itv->card->hw_all & IVTV_HW_TVEEPROM) { @@ -1253,11 +1246,6 @@ static int ivtv_probe(struct pci_dev *pdev, const st= ruct pci_device_id *pci_id) free_i2c: v4l2_ctrl_handler_free(&itv->cxhdl.hdl); exit_ivtv_i2c(itv); -free_mem: - release_mem_region(itv->base_addr, IVTV_ENCODER_SIZE); - release_mem_region(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); - if (itv->has_cx23415) - release_mem_region(itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SI= ZE); free_worker: kthread_stop(itv->irq_worker_task); err: @@ -1414,11 +1402,6 @@ static void ivtv_remove(struct pci_dev *pdev) =20 free_irq(itv->pdev->irq, (void *)itv); 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[34.86.135.125]) by smtp.gmail.com with ESMTPSA id af79cd13be357-794abca58e6sm329740885a.18.2024.05.27.15.14.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 27 May 2024 15:14:55 -0700 (PDT) From: Ricardo Ribalda Date: Mon, 27 May 2024 22:14:47 +0000 Subject: [PATCH 3/3] media: pci/ivtv: Use managed version of pci_enable_device Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240527-devm-itv-v1-3-f5829b8e7674@chromium.org> References: <20240527-devm-itv-v1-0-f5829b8e7674@chromium.org> In-Reply-To: <20240527-devm-itv-v1-0-f5829b8e7674@chromium.org> To: Andy Walls , Mauro Carvalho Chehab Cc: Hans Verkuil , linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.12.4 If there is any error during probing, we should probably leave the device in its previous state. pcim_ will take care of this. Signed-off-by: Ricardo Ribalda --- drivers/media/pci/ivtv/ivtv-driver.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/= ivtv-driver.c index 96f40c9685d2..ecc20cd89926 100644 --- a/drivers/media/pci/ivtv/ivtv-driver.c +++ b/drivers/media/pci/ivtv/ivtv-driver.c @@ -806,7 +806,7 @@ static int ivtv_setup_pci(struct ivtv *itv, struct pci_= dev *pdev, =20 IVTV_DEBUG_INFO("Enabling pci device\n"); =20 - if (pci_enable_device(pdev)) { + if (pcim_enable_device(pdev)) { IVTV_ERR("Can't enable device!\n"); return -EIO; } @@ -1402,7 +1402,6 @@ static void ivtv_remove(struct pci_dev *pdev) =20 free_irq(itv->pdev->irq, (void *)itv); =20 - pci_disable_device(itv->pdev); for (i =3D 0; i < IVTV_VBI_FRAMES; i++) kfree(itv->vbi.sliced_mpeg_data[i]); =20 --=20 2.45.1.288.g0e0cd299f1-goog