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Commit e0ee1d4c authored by Mahesh Sivasubramanian's avatar Mahesh Sivasubramanian
Browse files

msm-core: Check for NULL pointer deference 



In scenarios, where userspace hasn't populated the power numbers, per-cpu
pointer might be NULL. Add check to prevent any NULL pointer deferences.

Change-Id: Id193634dc764cb255a58026370ec7f9ef8abeebb
Signed-off-by: default avatarMahesh Sivasubramanian <msivasub@codeaurora.org>
parent 678c4bec

drivers/power/qcom/msm-core.c

+3 −0
Original line number Original line Diff line number Diff line
@@ -187,6 +187,9 @@ static void repopulate_stats(int cpu) 
	int temp_point;

	int temp_point;

	struct cpu_pstate_pwr *pt =  per_cpu(ptable, cpu);

	struct cpu_pstate_pwr *pt =  per_cpu(ptable, cpu);





	if (!pt)

		return;



	if (cpu_node->temp < TEMP_BASE_POINT)

	if (cpu_node->temp < TEMP_BASE_POINT)

		temp_point = 0;

		temp_point = 0;

	else if (cpu_node->temp > TEMP_MAX_POINT)

	else if (cpu_node->temp > TEMP_MAX_POINT)