Commit bb7dfd9e authored Nov 11, 2019 by Santosh Mardi

devfreq: check for valid hwmon node during get frequency



Update the condition to check valid hwmon before accessing it because
during parallel usecase of resume call and scaling_max_freq store call
it triggers a call to governor to get frequency and governor tries to
access hwmon node from devfreq pointer and it will be NULL if the
governor has failed to start.

Change-Id: I6ee7b784c3cf5e62d5f3f5b48e75ed44483d1a50
Signed-off-by: Santosh Mardi <gsantosh@codeaurora.org>

parent 01dafb76

drivers/devfreq/governor_bw_hwmon.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -705,7 +705,7 @@ static int devfreq_bw_hwmon_get_freq(struct devfreq *df,
		struct hwmon_node *node = df->data;

		/* Suspend/resume sequence */
		if (!node->mon_started) {
		if (node && !node->mon_started) {
		*freq = node->resume_freq;
		*node->dev_ab = node->resume_ab;
		return 0;