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Commit 01e00127 authored by Amir Vajid's avatar Amir Vajid
Browse files

PM / devfreq: memlat: add missing alloc check in start_hwmon 



Add a check in start_hwmon() to confirm alloc_attr() was able
to allocate memory and return -ENOMEM on failure.

Change-Id: I8cadaacc70ad13d60b6225b0d04e11e5b9aa9e5e
Signed-off-by: default avatarAmir Vajid <avajid@codeaurora.org>
parent 25064a00

drivers/devfreq/arm-memlat-mon.c

+4 −1
Original line number Diff line number Diff line
@@ -338,11 +338,14 @@ static void memlat_monitor_work(struct work_struct *work) 
static int start_hwmon(struct memlat_hwmon *hw)

{

	int ret = 0;

	struct perf_event_attr *attr = alloc_attr();

	unsigned int cpu;

	struct memlat_mon *mon = to_mon(hw);

	struct memlat_cpu_grp *cpu_grp = mon->cpu_grp;

	bool should_init_cpu_grp;

	struct perf_event_attr *attr = alloc_attr();



	if (!attr)

		return -ENOMEM;



	mutex_lock(&cpu_grp->mons_lock);

	should_init_cpu_grp = !(cpu_grp->num_active_mons++);