From patchwork Thu Nov 21 21:05:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiasheng Jiang X-Patchwork-Id: 844860 Received: from mail-qv1-f44.google.com (mail-qv1-f44.google.com [209.85.219.44]) (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 796B11DA63F; Thu, 21 Nov 2024 21:05:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.44 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732223151; cv=none; b=pvxo6tBsa5vEJI8Zm7kpjmNzP4zlQRWdVZJTpPEmEiUNQtmF52VeltVso2UZNzQ1rhGSNXzb+2zfKys0OkhUAv8vluneHHd5VrSI+r+HIDOFy/tC6ttauq1N5/7wQP8u+QTf7S0aoWFybdWhOLRcza5SUjAEpHwTYUTQH24GVdE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732223151; c=relaxed/simple; bh=fVfNIVDknjIh/0t0F3JPpYJurvUB7ZlfS01oi4uSWlY=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=ixC9D333e0pwNMJsxQY7JNr8PF0nWaX4gu+yqhWBx77BPIJKlofocJE0KP4U/vxzhQqWqbXYfyF2YIQUYqv/c0A/IplgKKrQZ17OBB9YpAd4qd2DGR6wC4NcIbTr3sc/HHvmevMdxr1Rkb8yGkDQ1KjiPI6XISafYc0Uz5HIWzY= 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=g5lDJlp5; arc=none smtp.client-ip=209.85.219.44 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="g5lDJlp5" Received: by mail-qv1-f44.google.com with SMTP id 6a1803df08f44-6d419832bf5so11169826d6.1; Thu, 21 Nov 2024 13:05:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1732223148; x=1732827948; 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; bh=GUUavdC9KXFSOqbuqB9VQAPUOgY2DcYv11W+nkff50E=; b=g5lDJlp5xRjqi86LpgRsiUPVhwGlZatHNPVTJIJSkJxrG5rCD7PGVMzuWZk6AMowsE V4a+ur1UgrzqxuRok6Rs8dWlmTZoO7AF5Q8BrPDqjhU4nq5V0lN0Rml4soyfeLXo26xU HPYgiwqXLC8mWz5Vshm0AVvmzNmApbsi4mSpZKvP+myQDlGHbPPS/G05ZiN39njdVouH tg0SfS0Yp3vsUceqOgiN2k9JMr/1as97BGxx4JMxnAP4QvBX0+5p6PYW43QnNIrnhoyk gCwMH5WjTKYVzYwAjucSlDsaIuLgbUw5kaStC+n1iWtELpkOT2raTebl+u5sSGJkXCkS bhMQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732223148; x=1732827948; 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=GUUavdC9KXFSOqbuqB9VQAPUOgY2DcYv11W+nkff50E=; b=ggn4I2CF8BugobyFBdEqJWSZil7uh+ovBuU5tp2m7Phh1rT3qD1cDGmqucxeg9JWJY lFzi4j0qrvQv57+Z1R0oUaZrYGvsBiT4yrqiEy2mAC6QCH51J0yTdMSfshGib9jSN2mg uUnxNaafq0Vs7gG1c3yWgTGvtKiMkmxOuT+qjMj/KiaoOSBYQswhROHg5o0XpnObVNJ5 kh7KsAUgtVVK+75TTv7PPDmqwqYQhRIqJqdsTx+UOj/U7sQh/ZEpHTG9ACsOo7Q94hha 4amITiQU9nMgB8unSg8UoBDdOWxwF2sunmhYTWnBRBYtbJpX8k7WSIozJJpakffOzJcX tHOg== X-Forwarded-Encrypted: i=1; AJvYcCVd9+pdINPxYYhnC/BZ1Wy809qT71puNArUCrAMJi4Y3WUkVCHk4FBNJ6d5H9bs9Qdix3GvRPEYs8mFEHrkJbqjW8k=@vger.kernel.org, AJvYcCWpZKMn00H8Ny0VLHp06beLR6IZ7AmeP52DGYwtFNs2n6bHlUGwBj3phqGxO6HWQrUD3GCKiP1qvWC1dr0=@vger.kernel.org X-Gm-Message-State: AOJu0Yz2mO4ELnx2pppixuAuEl4v8iri6Rt4pWQLfT1B5TcVaplWqyUy YvxHU0pgn1meJ+LjCaXVXC/3P0XmB9UnCkLoMfHDYqMwefGz1arn X-Gm-Gg: ASbGncvexQeeh1eCnslxyvevH6gqlyekXUNpDSTBtTsc1eXET2TpsoxheGPaD/GV9CH vT7qAr8+sAf6HFQYybl3+wHySv+14D1QPS824qtDSml5rSWYTS00TrJGsGlxkNV3aste9f0rKPZ g7yML/ho4COaAbNq+RZ43gwpd08/xcNKrUc3q1AU6F9O0La8T+VG+2LDbAComClxxXbGdEt5q/T UH98ojONmQ0c0SV26X8sOelbdiORxudShG6+aYjw/0hRBM5zAzCe9rMKODJQC/7rVVd49mI X-Google-Smtp-Source: AGHT+IEmOD6xWP8JPHNPxGJBr5HO77neL74Fcf9zeBqiL3qskduADaRVqaWOHYGSFIJ1yUIEkxA3gw== X-Received: by 2002:ad4:574b:0:b0:6cb:ce17:e80d with SMTP id 6a1803df08f44-6d4510167d7mr11722036d6.18.1732223148239; Thu, 21 Nov 2024 13:05:48 -0800 (PST) Received: from newman.cs.purdue.edu ([128.10.127.250]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-6d451b4a11dsm1658506d6.102.2024.11.21.13.05.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Nov 2024 13:05:48 -0800 (PST) From: Jiasheng Jiang To: sylvester.nawrocki@gmail.com, mchehab@kernel.org, dron0gus@gmail.com, tomasz.figa@gmail.com, krzk@kernel.org, alim.akhtar@samsung.com, kyungmin.park@samsung.com, laurent.pinchart@ideasonboard.com Cc: linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Jiasheng Jiang Subject: [PATCH 1/2] media: mipi-csis: Add check for clk_enable() Date: Thu, 21 Nov 2024 21:05:43 +0000 Message-Id: <20241121210543.8190-2-jiashengjiangcool@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241121210543.8190-1-jiashengjiangcool@gmail.com> References: <20241121210543.8190-1-jiashengjiangcool@gmail.com> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add check for the return value of clk_enable() to gurantee the success. Fixes: b5f1220d587d ("[media] v4l: Add v4l2 subdev driver for S5P/EXYNOS4 MIPI-CSI receivers") Signed-off-by: Jiasheng Jiang --- drivers/media/platform/samsung/exynos4-is/mipi-csis.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c index 63f3eecdd7e6..d1c938065475 100644 --- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c +++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c @@ -940,7 +940,9 @@ static int s5pcsis_pm_resume(struct device *dev, bool runtime) state->supplies); goto unlock; } - clk_enable(state->clock[CSIS_CLK_GATE]); + ret = clk_enable(state->clock[CSIS_CLK_GATE]); + if (ret) + goto unlock; } if (state->flags & ST_STREAMING) s5pcsis_start_stream(state);