iio:light:ltr501: fix variable in ltr501_init

When filling data->als_contr, the register content read into status needs
to be used, instead of the return status value of regmap_read.

Fixes: 8592a7eefa540 ("iio: ltr501: Add support for ltr559 chip")

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Daniel Baluta <daniel.baluta@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 1ef7d37..b5a0e66 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1302,7 +1302,7 @@
 	if (ret < 0)
 		return ret;
 
-	data->als_contr = ret | data->chip_info->als_mode_active;
+	data->als_contr = status | data->chip_info->als_mode_active;
 
 	ret = regmap_read(data->regmap, LTR501_PS_CONTR, &status);
 	if (ret < 0)