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From: Daniel Lezcano <daniel.lezcano@linaro.org>
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	[thread overview]
Message-ID: <20210224183022.11846-1-daniel.lezcano@linaro.org> (raw)

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 <daniel.lezcano@linaro.org>
---
 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


             reply	other threads:[~2021-02-24 18:31 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-24 18:30 Daniel Lezcano [this message]
2021-02-24 18:30 ` [PATCH 2/2] powercap/drivers/dtpm: Add the experimental label to the option description Daniel Lezcano
2021-03-01 16:45 ` [PATCH 1/2] powercap/drivers/dtpm: Fix root node initialization Rafael J. Wysocki
2021-03-01 18:15   ` Daniel Lezcano

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