> - return num; > + return ret; Not quite. Kdoc describes the retval in i2c_transfer. 2136 * i2c_transfer - execute a single or combined I2C message 2137 * @adap: Handle to I2C bus 2138 * @msgs: One or more messages to execute before STOP is issued to 2139 * terminate the operation; each message begins with a START. 2140 * @num: Number of messages to be executed. 2141 * 2142 * Returns negative errno, else the number of messages executed. I agree this needs better documentation in i2c.h, I will fix it.
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