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hwmon: (ads7828) Check return value of devm_regmap_init_i2c
author
Axel Lin
<axel.lin@ingics.com>
Tue, 10 Feb 2015 10:24:07 +0000
(18:24 +0800)
committer
Guenter Roeck
<linux@roeck-us.net>
Mon, 23 Feb 2015 04:10:30 +0000
(20:10 -0800)
devm_regmap_init_i2c() can fail, thus add return value checking.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
drivers/hwmon/ads7828.c
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diff --git
a/drivers/hwmon/ads7828.c
b/drivers/hwmon/ads7828.c
index
bce4e9f
..
6c99ee7
100644
(file)
--- a/
drivers/hwmon/ads7828.c
+++ b/
drivers/hwmon/ads7828.c
@@
-147,6
+147,9
@@
static int ads7828_probe(struct i2c_client *client,
&ads2830_regmap_config);
}
+ if (IS_ERR(data->regmap))
+ return PTR_ERR(data->regmap);
+
data->cmd_byte = ext_vref ? ADS7828_CMD_PD1 : ADS7828_CMD_PD3;
if (!diff_input)
data->cmd_byte |= ADS7828_CMD_SD_SE;