media: em28xx: don't check number of messages in the driver

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@the-dreams.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

diff --git a/drivers/media/usb/em28xx/em28xx-i2c.c b/drivers/media/usb/em28xx/em28xx-i2c.c
index 6458682bc6e250b7513be2d6f4a457eaa2ed23f3..e19d6342e0d0af74311dc7943c0a56969b80d1ac 100644 (file)
--- 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) {