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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2022-03-20 08:10:30 +0100 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-04-04 18:30:14 +0200 |
| commit | 56653827f0d7bc7c2d8bac0e119fd1521fa9990a (patch) | |
| tree | 57cd5c2007c02b12d0b98914de83565a0ed41ffb /drivers/memory | |
| parent | Linux 5.18-rc1 (diff) | |
| download | linux-56653827f0d7bc7c2d8bac0e119fd1521fa9990a.tar.xz linux-56653827f0d7bc7c2d8bac0e119fd1521fa9990a.zip | |
memory: samsung: exynos5422-dmc: Avoid some over memory allocation
'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@wanadoo.fr>
Link: https://lore.kernel.org/r/69d7e69346986e2fdb994d4382954c932f9f0993.1647760213.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/samsung/exynos5422-dmc.c | 5 |
1 files 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; |