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Tue, 19 Nov 2024 11:37:18 -0800 (PST) Received: from [192.168.1.20] ([178.197.211.167]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38254905294sm129183f8f.11.2024.11.19.11.37.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 19 Nov 2024 11:37:17 -0800 (PST) Message-ID: <3bfd6343-de4a-4cf5-a4b8-55a3531eb41e@linaro.org> Date: Tue, 19 Nov 2024 20:37:15 +0100 Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC/RFT 4/6] firmware: qcom: scm: Cleanup global '__scm' on probe failures To: Bjorn Andersson , Konrad Dybcio , Mukesh Ojha , Dmitry Baryshkov , Stephan Gerhold , Bartosz Golaszewski , Kuldeep Singh , Elliot Berman , Andrew Halaney , Avaneesh Kumar Dwivedi , Andy Gross Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org References: <20241119-qcom-scm-missing-barriers-and-all-sort-of-srap-v1-0-7056127007a7@linaro.org> <20241119-qcom-scm-missing-barriers-and-all-sort-of-srap-v1-4-7056127007a7@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzysztof.kozlowski@linaro.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 19/11/2024 19:33, Krzysztof Kozlowski wrote: > /* > * Initialize the QSEECOM interface. > @@ -2094,6 +2104,12 @@ static int qcom_scm_probe(struct platform_device *pdev) > WARN(ret < 0, "failed to initialize qseecom: %d\n", ret); > > return 0; > + > +err: > + /* Paired with smp_load_acquire() in qcom_scm_is_available(). */ > + smp_store_release(&__scm, 0); Heh, I should store there NULL, obviously. Best regards, Krzysztof