From patchwork Wed Oct 26 13:06:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Lad, Prabhakar" X-Patchwork-Id: 13020553 X-Patchwork-Delegate: kieran@bingham.xyz Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B644C433FE for ; Wed, 26 Oct 2022 13:07:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233705AbiJZNHs (ORCPT ); Wed, 26 Oct 2022 09:07:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233890AbiJZNHc (ORCPT ); Wed, 26 Oct 2022 09:07:32 -0400 Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7886AFAE72; Wed, 26 Oct 2022 06:07:27 -0700 (PDT) Received: by mail-wm1-x32a.google.com with SMTP id i5-20020a1c3b05000000b003cf47dcd316so1443737wma.4; Wed, 26 Oct 2022 06:07:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; 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; bh=mEu7I9A+1d1yBU6Am+OewhMcYYZSOczpTnlVQrd1DYM=; b=cjJngFxaJaLl708ZHAdh+fxZXdLGT/ZiLDibcXXYBuerYzqM9/tyfJBWfNrMzuNe9z T973GjsyzcMJcuDxy1bfyy0r3+27tKl1mU7rOPvIL0E+L70YfuVk5qQX4GS8n3xrD5BL 7SLD3WnQZmINrOU90gL3aMB1ylLzppKrD+1WhOhtRLOngmLO91oNbeB4nH9i/2jVCKR0 cjoJ2OVRresDZKJWx93l14R8dMGAEZRJAfPSFRQETjHB69lWPdW75cHwsVK2iO6BqLFe KXEZuD+DRc7jbNHxSF56p33bZPIwKo2u3AhKMshoNYfdHMjdT6RJTZt7EOrGVf5uX3Wh /vrQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mEu7I9A+1d1yBU6Am+OewhMcYYZSOczpTnlVQrd1DYM=; b=l7udgUfNgHzsxdoefOFyYx5b+8KecTlYMMi9I6AghecrLGp3GzDo8eE+CUqM3DsxFX +LejW3e2ygRK6wx4jMW8O79IYo5FPADiryNuBNaeH2vzAIMC23ne/AD24VVkJada3+Qj mDCy6awrfetRCg9xh6lmd7f5WXqLcMLQwWMBQn6antoz6r+c8RKiEMmW1o7WfqLRDNrf 27zP3PPNQpgqMWFkRcI5I9LflieNaXMWdQnnXATCt0y1wHXCTLX4SdaTLqhH/zz77Zi8 /60rRtiKVXkOv/g+ZBWYmMGiGHEy6krAbJuVuHZ2CskXNmHsi5USizaV8q6Yq01SZ1DC 66pg== X-Gm-Message-State: ACrzQf2UioojMZI9ECBK7JXh2+of8GJxmBgkyFM/ZmcLjajoowQ2tPWY IwQULA6Zff17bdMc14g9yzg= X-Google-Smtp-Source: AMsMyM5cKNni+vS1VdAMcU0kGbWUB5mxeo7A5g4R+eDKuIjEUyZL8tXaPGk7kVdX3RAfayb2IlMuEQ== X-Received: by 2002:a05:600c:3d08:b0:3c6:fb56:ac9f with SMTP id bh8-20020a05600c3d0800b003c6fb56ac9fmr2471277wmb.193.1666789645913; Wed, 26 Oct 2022 06:07:25 -0700 (PDT) Received: from prasmi.home ([2a00:23c8:2501:c701:cc:c67c:46e:319e]) by smtp.gmail.com with ESMTPSA id l3-20020adfa383000000b002366eb01e07sm5245433wrb.114.2022.10.26.06.07.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Oct 2022 06:07:25 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Sakari Ailus , Laurent Pinchart , Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Geert Uytterhoeven , Magnus Damm , Hans Verkuil Cc: Shawn Tu , Jacopo Mondi , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH v3 8/9] media: i2c: ov5645: Don't return early on failures for s_stream(0) Date: Wed, 26 Oct 2022 14:06:57 +0100 Message-Id: <20221026130658.45601-9-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221026130658.45601-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20221026130658.45601-1-prabhakar.mahadev-lad.rj@bp.renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org From: Lad Prabhakar Make sure we dont stop the code flow in case of errors while stopping the stream and return the error code of the first error case if any. v4l2-core takes care of warning the user so no need to add a warning message in the driver. Suggested-by: Sakari Ailus Signed-off-by: Lad Prabhakar --- v2->v3 * Now propagating the first error code in case of failure. v1->v2 * New patch --- drivers/media/i2c/ov5645.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c index eea3067ddc8b..5702a55607fc 100644 --- a/drivers/media/i2c/ov5645.c +++ b/drivers/media/i2c/ov5645.c @@ -996,17 +996,22 @@ static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) if (ret < 0) goto err_rpm_put; } else { + int stream_off_ret = 0; + ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x40); if (ret < 0) - return ret; + stream_off_ret = ret; ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, OV5645_SYSTEM_CTRL0_STOP); - if (ret < 0) - return ret; + if (ret < 0 && !stream_off_ret) + stream_off_ret = ret; pm_runtime_mark_last_busy(ov5645->dev); pm_runtime_put_autosuspend(ov5645->dev); + + if (stream_off_ret) + return stream_off_ret; } return 0;