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[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); =20 - 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); - pci_disable_device(itv->pdev); for (i =3D 0; i < IVTV_VBI_FRAMES; i++) kfree(itv->vbi.sliced_mpeg_data[i]); --=20 2.45.1.288.g0e0cd299f1-goog