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Commit 75f53af2 authored by Joonwoo Park's avatar Joonwoo Park
Browse files

sched: energy: handle memory allocation failure 



Return immediately upon memory allocation failure.

Change-Id: I30947d55f0f4abd55c51e42912a0762df57cbc1d
Signed-off-by: default avatarJoonwoo Park <joonwoop@codeaurora.org>
parent 4784ec24

kernel/sched/energy.c

+13 −0
Original line number Diff line number Diff line
@@ -84,11 +84,17 @@ void init_sched_energy_costs(void) 


			sge = kcalloc(1, sizeof(struct sched_group_energy),

				      GFP_NOWAIT);

			if (!sge)

				goto out;



			nstates = (prop->length / sizeof(u32)) / 2;

			cap_states = kcalloc(nstates,

					     sizeof(struct capacity_state),

					     GFP_NOWAIT);

			if (!cap_states) {

				kfree(sge);

				goto out;

			}



			for (i = 0, val = prop->value; i < nstates; i++) {

				cap_states[i].cap = be32_to_cpup(val++);
@@ -101,6 +107,8 @@ void init_sched_energy_costs(void) 
			prop = of_find_property(cp, "idle-cost-data", NULL);

			if (!prop || !prop->value) {

				pr_warn("No idle-cost data, skipping sched_energy init\n");

				kfree(sge);

				kfree(cap_states);

				goto out;

			}
@@ -108,6 +116,11 @@ void init_sched_energy_costs(void) 
			idle_states = kcalloc(nstates,

					      sizeof(struct idle_state),

					      GFP_NOWAIT);

			if (!idle_states) {

				kfree(sge);

				kfree(cap_states);

				goto out;

			}



			for (i = 0, val = prop->value; i < nstates; i++)

				idle_states[i].power = be32_to_cpup(val++);