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iio: accel: bma220: Fix returned codes from bma220_init(), bma220_deinit()

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Potentially bma220_init() and bma220_deinit() may return positive codes.
Fix the logic to return proper error codes instead.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200831090813.78841-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Andy Shevchenko 2020-08-31 12:08:06 +03:00 committed by Jonathan Cameron
parent 8d7eab6207
commit 5265b267e3
1 changed files with 9 additions and 5 deletions
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14
drivers/iio/accel/bma220_spi.c
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@ -198,10 +198,12 @@ static int bma220_init(struct spi_device *spi)
/* Make sure the chip is powered on */
ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
if (ret == BMA220_SUSPEND_WAKE)
ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
if (ret < 0)
return ret;
else if (ret == BMA220_SUSPEND_WAKE)
return bma220_read_reg(spi, BMA220_REG_SUSPEND);
if (ret == BMA220_SUSPEND_WAKE)
return -EBUSY;
return 0;
}
@ -212,10 +214,12 @@ static int bma220_deinit(struct spi_device *spi)
/* Make sure the chip is powered off */
ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
if (ret == BMA220_SUSPEND_SLEEP)
ret = bma220_read_reg(spi, BMA220_REG_SUSPEND);
if (ret < 0)
return ret;
else if (ret == BMA220_SUSPEND_SLEEP)
return bma220_read_reg(spi, BMA220_REG_SUSPEND);
if (ret == BMA220_SUSPEND_SLEEP)
return -EBUSY;
return 0;
}
@ -245,7 +249,7 @@ static int bma220_probe(struct spi_device *spi)
indio_dev->available_scan_masks = bma220_accel_scan_masks;
ret = bma220_init(data->spi_device);
if (ret < 0)
if (ret)
return ret;
ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time,