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Merge pull request #4401 from howard0su/i2c_security 

Return when i2c transfer 0 messages
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Bernard Xiong 2021-03-01 19:09:12 +08:00 committed by GitHub
parent fe980c77c0 5a184c19b2
commit 339ebf3c16
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1 changed files with 2 additions and 0 deletions
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components/drivers/i2c/i2c-bit-ops.c
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@ -375,6 +375,8 @@ static rt_size_t i2c_bit_xfer(struct rt_i2c_bus_device *bus,
rt_int32_t i, ret; rt_int32_t i, ret;
rt_uint16_t ignore_nack; rt_uint16_t ignore_nack;
if (num == 0) return 0;
for (i = 0; i < num; i++) for (i = 0; i < num; i++)
{ {
msg = &msgs[i]; msg = &msgs[i];