'dmc->counter' is a 'struct devfreq_event_dev **', so there is some
over memory allocation. 'counters_size' should be computed with
'sizeof(struct devfreq_event_dev *)'.
Use 'sizeof(*dmc->counter)' instead to fix it.
While at it, use devm_kcalloc() instead of devm_kzalloc()+open coded
multiplication.
Fixes: 6e7674c3c6df ("memory: Add DMC driver for Exynos5422")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
devm_kmalloc_array() could also be used to save a few cycles because the
array is fully initialized a few lines below.
---
drivers/memory/samsung/exynos5422-dmc.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/memory/samsung/exynos5422-dmc.c b/drivers/memory/samsung/exynos5422-dmc.c
index 9c8318923ed0..4733e7898ffe 100644
--- a/drivers/memory/samsung/exynos5422-dmc.c
+++ b/drivers/memory/samsung/exynos5422-dmc.c
@@ -1322,7 +1322,6 @@ static int exynos5_dmc_init_clks(struct exynos5_dmc *dmc)
*/
static int exynos5_performance_counters_init(struct exynos5_dmc *dmc)
{
- int counters_size;
int ret, i;
dmc->num_counters = devfreq_event_get_edev_count(dmc->dev,
@@ -1332,8 +1331,8 @@ static int exynos5_performance_counters_init(struct exynos5_dmc *dmc)
return dmc->num_counters;
}
- counters_size = sizeof(struct devfreq_event_dev) * dmc->num_counters;
- dmc->counter = devm_kzalloc(dmc->dev, counters_size, GFP_KERNEL);
+ dmc->counter = devm_kcalloc(dmc->dev, dmc->num_counters,
+ sizeof(*dmc->counter), GFP_KERNEL);
if (!dmc->counter)
return -ENOMEM;
--
2.32.0
