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Code Issues Wiki Activity

Protect against null timerHardware

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This commit is contained in:
jflyper 2019-05-04 11:13:25 +09:00
parent 95544151f1
commit 355fc7bd7e
2 changed files with 10 additions and 0 deletions
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5
src/main/drivers/light_ws2811strip_hal.c
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@ -58,6 +58,11 @@ bool ws2811LedStripHardwareInit(ioTag_t ioTag)
} }
const timerHardware_t *timerHardware = timerGetByTag(ioTag); const timerHardware_t *timerHardware = timerGetByTag(ioTag);
if (timerHardware == NULL) {
return false;
}
TIM_TypeDef *timer = timerHardware->tim; TIM_TypeDef *timer = timerHardware->tim;
timerChannel = timerHardware->channel; timerChannel = timerHardware->channel;

5
src/main/drivers/light_ws2811strip_stdperiph.c
View file

@ -86,6 +86,11 @@ bool ws2811LedStripHardwareInit(ioTag_t ioTag)
DMA_InitTypeDef DMA_InitStructure; DMA_InitTypeDef DMA_InitStructure;
const timerHardware_t *timerHardware = timerGetByTag(ioTag); const timerHardware_t *timerHardware = timerGetByTag(ioTag);
if (timerHardware == NULL) {
return false;
}
timer = timerHardware->tim; timer = timerHardware->tim;
#if defined(USE_DMA_SPEC) #if defined(USE_DMA_SPEC)