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Merge pull request #969 from BennyEvans/master

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Fix for dcd_synopsys driver integer overflow in HS mode (issue #968).
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Ha Thach 2021-07-19 16:22:53 +07:00 committed by GitHub
commit ecd217d163
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1 changed files with 2 additions and 2 deletions
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src/portable/st/synopsys/dcd_synopsys.c
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@ -656,7 +656,7 @@ bool dcd_edpt_xfer (uint8_t rhport, uint8_t ep_addr, uint8_t * buffer, uint16_t
} }
uint16_t num_packets = (total_bytes / xfer->max_size); uint16_t num_packets = (total_bytes / xfer->max_size);
uint8_t const short_packet_size = total_bytes % xfer->max_size; uint16_t const short_packet_size = total_bytes % xfer->max_size;
// Zero-size packet is special case. // Zero-size packet is special case.
if(short_packet_size > 0 || (total_bytes == 0)) { if(short_packet_size > 0 || (total_bytes == 0)) {
@ -687,7 +687,7 @@ bool dcd_edpt_xfer_fifo (uint8_t rhport, uint8_t ep_addr, tu_fifo_t * ff, uint16
xfer->total_len = total_bytes; xfer->total_len = total_bytes;
uint16_t num_packets = (total_bytes / xfer->max_size); uint16_t num_packets = (total_bytes / xfer->max_size);
uint8_t const short_packet_size = total_bytes % xfer->max_size; uint16_t const short_packet_size = total_bytes % xfer->max_size;
// Zero-size packet is special case. // Zero-size packet is special case.
if(short_packet_size > 0 || (total_bytes == 0)) num_packets++; if(short_packet_size > 0 || (total_bytes == 0)) num_packets++;