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Date: Mon, 16 Nov 2020 21:59:41 +0530 From: Mukesh Ojha <mojha@...eaurora.org> To: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org Cc: rui.zhang@...el.com, daniel.lezcano@...aro.org, amitk@...nel.org, Mukesh Ojha <mojha@...eaurora.org> Subject: [PATCH] thermal: Fix NULL pointer dereference issue Cooling stats variable inside thermal_cooling_device_stats_update() can get NULL. We should add a NULL check on stat inside for sanity. Signed-off-by: Mukesh Ojha <mojha@...eaurora.org> --- drivers/thermal/thermal_sysfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c index a6f371f..f52708f 100644 --- a/drivers/thermal/thermal_sysfs.c +++ b/drivers/thermal/thermal_sysfs.c @@ -754,6 +754,9 @@ void thermal_cooling_device_stats_update(struct thermal_cooling_device *cdev, { struct cooling_dev_stats *stats = cdev->stats; + if (!stats) + return; + spin_lock(&stats->lock); if (stats->state == new_state) -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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