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[components][driver][can]Fix possible memory overflow caused by RX 

修复RX可能导致的内存溢出情况

#8634
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wdfk-prog 2024-07-09 20:22:37 +08:00 committed by GitHub
parent befa478073
commit 15a8ebe0a0
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1 changed files with 3 additions and 3 deletions
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6
components/drivers/can/can.c
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@ -43,9 +43,9 @@ static rt_err_t rt_can_init(struct rt_device *dev)
/* /*
* can interrupt routines * can interrupt routines
*/ */
rt_inline int _can_int_rx(struct rt_can_device *can, struct rt_can_msg *data, int msgs) rt_inline rt_ssize_t _can_int_rx(struct rt_can_device *can, struct rt_can_msg *data, rt_ssize_t msgs)
{ {
int size; rt_ssize_t size;
struct rt_can_rx_fifo *rx_fifo; struct rt_can_rx_fifo *rx_fifo;
RT_ASSERT(can != RT_NULL); RT_ASSERT(can != RT_NULL);
size = msgs; size = msgs;
@ -54,7 +54,7 @@ rt_inline int _can_int_rx(struct rt_can_device *can, struct rt_can_msg *data, in
RT_ASSERT(rx_fifo != RT_NULL); RT_ASSERT(rx_fifo != RT_NULL);
/* read from software FIFO */ /* read from software FIFO */
while (msgs) while (msgs / sizeof(struct rt_can_msg) > 0)
{ {
rt_base_t level; rt_base_t level;
#ifdef RT_CAN_USING_HDR #ifdef RT_CAN_USING_HDR