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ocpoc_adc: handle return from fscanf

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davidaroyer
2017-07-20 12:18:33 -05:00
committed by Lorenz Meier
parent d01150990b
commit d5cbbba341
1 changed files with 6 additions and 1 deletions
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src/drivers/ocpoc_adc/ocpoc_adc.cpp
+6 -1
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@@ -154,7 +154,12 @@ int OcpocADC::read(px4_adc_msg_t(*buf)[PX4_MAX_ADC_CHANNELS], unsigned int len)
FILE *xadc_fd = fopen(ADC_VOLTAGE_PATH, "r");
if (xadc_fd != NULL) {
fscanf(xadc_fd, "%d", buff);
int ret_tmp = fscanf(xadc_fd, "%d", buff);
if (ret_tmp < 0) {
ret = ret_tmp;
}
fclose(xadc_fd);
(*buf)[0].am_data = buff[0];