diff options
| -rw-r--r-- | drivers/interconnect/mediatek/icc-emi.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/interconnect/mediatek/icc-emi.c b/drivers/interconnect/mediatek/icc-emi.c index 182aa2b0623a..dfa3a9cd9399 100644 --- a/drivers/interconnect/mediatek/icc-emi.c +++ b/drivers/interconnect/mediatek/icc-emi.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_platform.h> +#include <linux/overflow.h> #include <linux/platform_device.h> #include <linux/soc/mediatek/dvfsrc.h> @@ -22,7 +23,9 @@ static int mtk_emi_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw, { struct mtk_icc_node *in = node->data; - *agg_avg += avg_bw; + if (check_add_overflow(*agg_avg, avg_bw, agg_avg)) + *agg_avg = U32_MAX; + *agg_peak = max_t(u32, *agg_peak, peak_bw); in->sum_avg = *agg_avg; |