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Merge branch 'bugfix/usleep_overflow_v5.3' into 'release/v5.3'

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fix(newlib): fixed potential overflow in usleep (v5.3)

See merge request espressif/esp-idf!33001
This commit is contained in:
Marius Vikhammer
2024-09-04 11:44:21 +08:00
parent 14f723244c d777b8e72a
commit 07f531e984
1 changed files with 4 additions and 1 deletions
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5
components/newlib/time.c
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@ -200,7 +200,10 @@ WEAK_UNLESS_TIMEFUNC_IMPL int settimeofday(const struct timeval *tv, const struc
int usleep(useconds_t us) int usleep(useconds_t us)
{ {
const int us_per_tick = portTICK_PERIOD_MS * 1000; /* Even at max tick rate, vTaskDelay can still delay for the max of the us argument,
we just need to make sure the tick calculation does not overflow
*/
const int64_t us_per_tick = portTICK_PERIOD_MS * 1000;
if (us < us_per_tick) { if (us < us_per_tick) {
esp_rom_delay_us((uint32_t) us); esp_rom_delay_us((uint32_t) us);
} else { } else {