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CAN: read can do only up to 8 bytes, error if more is reported #15374

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merged 1 commit into from
Jan 23, 2023
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CAN: read can do only up to 8 bytes, error if more is reported #15374

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4 changes: 4 additions & 0 deletions drivers/source/CAN.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,7 @@
#if DEVICE_CAN

#include "platform/mbed_power_mgmt.h"
#include "platform/mbed_error.h"

namespace mbed {

Expand Down Expand Up @@ -82,6 +83,9 @@ int CAN::read(CANMessage &msg, int handle)
{
lock();
int ret = can_read(&_can, &msg, handle);
if (msg.len > 8) {
MBED_ERROR(MBED_MAKE_ERROR(MBED_MODULE_DRIVER_CAN, MBED_ERROR_CODE_READ_FAILED), "Read tried to write more than 8 bytes");
}
unlock();
return ret;
}
Expand Down