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staging: iio: accel: fix error check

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sca3000_read_ctrl_reg() returns a negative number on failure, check for
this instead of zero.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Luis de Bethencourt 2016-06-22 20:43:30 +01:00 committed by Jonathan Cameron
parent df013212a1
commit ef3149eb3d
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/iio/accel/sca3000_core.c
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@ -594,7 +594,7 @@ static ssize_t sca3000_read_frequency(struct device *dev,
goto error_ret_mut;
ret = sca3000_read_ctrl_reg(st, SCA3000_REG_CTRL_SEL_OUT_CTRL);
mutex_unlock(&st->lock);
if (ret)
if (ret < 0)
goto error_ret;
val = ret;
if (base_freq > 0)