linux-kernel - [PATCH v3 04/28] staging: iio: tsl2583: remove unnecessary chip status check in taos_get

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Date:   Thu, 10 Nov 2016 04:25:40 -0500
From:   Brian Masney <masneyb@...tation.org>
To:     jic23@...nel.org, linux-iio@...r.kernel.org
Cc:     devel@...verdev.osuosl.org, gregkh@...uxfoundation.org,
        lars@...afoo.de, pmeerw@...erw.net, knaack.h@....de,
        linux-kernel@...r.kernel.org, Jon.Brenner@....com
Subject: [PATCH v3 04/28] staging: iio: tsl2583: remove unnecessary chip status check in taos_get_lux

taos_get_lux checks to see if the chip is in a working state. This
check is not necessary since it is only called from tsl2583_read_raw
and in_illuminance_calibrate_store (via taos_als_calibrate). The chip
state is already checked by these functions.

Signed-off-by: Brian Masney <masneyb@...tation.org>
---
 drivers/staging/iio/light/tsl2583.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index eb59ea0..170b8e9 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -178,13 +178,6 @@ static int taos_get_lux(struct iio_dev *indio_dev)
 	u32 ch0lux = 0;
 	u32 ch1lux = 0;
 
-	if (chip->taos_chip_status != TSL258X_CHIP_WORKING) {
-		/* device is not enabled */
-		dev_err(&chip->client->dev, "taos_get_lux device is not enabled\n");
-		ret = -EBUSY;
-		goto done;
-	}
-
 	ret = i2c_smbus_read_byte_data(chip->client, TSL258X_CMD_REG);
 	if (ret < 0) {
 		dev_err(&chip->client->dev, "taos_get_lux failed to read CMD_REG\n");
-- 
2.7.4