linux-kernel - [PATCH v3 25/28] staging: iio: tsl2583: remove unnecessary memset call

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Message-Id: <1478769964-7065-26-git-send-email-masneyb@onstation.org>
Date:   Thu, 10 Nov 2016 04:26:01 -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 25/28] staging: iio: tsl2583: remove unnecessary memset call

The entries in the lux table (als_device_lux) can be updated via sysfs
through the function in_illuminance_lux_table_store(). The last row in
the table must be terminated with values that are zero. The sysfs code
already ensures that the last row is all zeros. The call to memset to
clear out the table is not needed so this patch removes the unnecessary
call.

Signed-off-by: Brian Masney <masneyb@...tation.org>
---
 drivers/staging/iio/light/tsl2583.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index bbef8ea..b5ebe31 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -587,9 +587,6 @@ static ssize_t in_illuminance_lux_table_store(struct device *dev,
 		goto done;
 	}
 
-	/* Zero out the table */
-	memset(chip->als_settings.als_device_lux, 0,
-	       sizeof(chip->als_settings.als_device_lux));
 	memcpy(chip->als_settings.als_device_lux, &value[1],
 	       value[0] * sizeof(unsigned int));
 
-- 
2.7.4