Input: cy8ctmg110_ts - fix checking return value of i2c_master_send

i2c_master_send returns negative errno, or else the number of bytes written.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
index a93c5c26ab3fa7d858238d13b1c27e919958c8c9..b3fdd1361c36bd90f3c08295e060b9c6bae20cd7 100644 (file)
--- a/drivers/input/touchscreen/cy8ctmg110_ts.c
+++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
@@ -84,9 +84,9 @@ static int cy8ctmg110_write_regs(struct cy8ctmg110 *tsc, unsigned char reg,
        memcpy(i2c_data + 1, value, len);
 
        ret = i2c_master_send(client, i2c_data, len + 1);
-       if (ret != 1) {
+       if (ret != len + 1) {
                dev_err(&client->dev, "i2c write data cmd failed\n");
-               return ret ? ret : -EIO;
+               return ret < 0 ? ret : -EIO;
        }
 
        return 0;