leds: lp3944: Fix return value

Return the value obtained from i2c_smbus_read_byte_data() instead of
-EINVAL. Silences the following smatch warning:
drivers/leds/leds-lp3944.c:89 lp3944_reg_read() info:
why not propagate 'tmp' from i2c_smbus_read_byte_data() instead of -22?

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>

diff --git a/drivers/leds/leds-lp3944.c b/drivers/leds/leds-lp3944.c
index c298f7d9f5357eb27fe302c2a96d906b2ab38b66..b2d82e2d2e9df322ad602700ef1afbd9e732142a 100644 (file)
--- a/drivers/leds/leds-lp3944.c
+++ b/drivers/leds/leds-lp3944.c
@@ -86,7 +86,7 @@ static int lp3944_reg_read(struct i2c_client *client, u8 reg, u8 *value)
 
        tmp = i2c_smbus_read_byte_data(client, reg);
        if (tmp < 0)
-               return -EINVAL;
+               return tmp;
 
        *value = tmp;