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>

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
index a93c5c26ab3f..b3fdd1361c36 100644
--- 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;