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[82.252.157.252]) by smtp.gmail.com with ESMTPSA id c12sm5105987wru.71.2021.02.24.10.30.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Feb 2021 10:30:31 -0800 (PST) From: Daniel Lezcano To: rafael@kernel.org, daniel.lezcano@linaro.org Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 1/2] powercap/drivers/dtpm: Fix root node initialization Date: Wed, 24 Feb 2021 19:30:21 +0100 Message-Id: <20210224183022.11846-1-daniel.lezcano@linaro.org> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The root node is not set to NULL when the dtpm root node is removed. Consequently, it is not possible to create a new root as it is already set. Set the root node to NULL when the last node is removed. Signed-off-by: Daniel Lezcano --- drivers/powercap/dtpm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/powercap/dtpm.c b/drivers/powercap/dtpm.c index 5a51cd34a7e8..c2185ec5f887 100644 --- a/drivers/powercap/dtpm.c +++ b/drivers/powercap/dtpm.c @@ -207,6 +207,9 @@ int dtpm_release_zone(struct powercap_zone *pcz) if (dtpm->ops) dtpm->ops->release(dtpm); + if (root == dtpm) + root = NULL; + kfree(dtpm); return 0; -- 2.17.1