Since commit 1eace8344c02 ("i2c: add param sanity check to i2c_transfer()"), the I2C core does this check now. We can remove it from drivers. Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxxxxx> --- Only build tested. drivers/media/usb/em28xx/em28xx-i2c.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/media/usb/em28xx/em28xx-i2c.c b/drivers/media/usb/em28xx/em28xx-i2c.c index 6458682bc6e2..e19d6342e0d0 100644 --- a/drivers/media/usb/em28xx/em28xx-i2c.c +++ b/drivers/media/usb/em28xx/em28xx-i2c.c @@ -559,10 +559,6 @@ static int em28xx_i2c_xfer(struct i2c_adapter *i2c_adap, dev->cur_i2c_bus = bus; } - if (num <= 0) { - rt_mutex_unlock(&dev->i2c_bus_lock); - return 0; - } for (i = 0; i < num; i++) { addr = msgs[i].addr << 1; if (!msgs[i].len) { -- 2.11.0