From: Luis de Bethencourt <[email protected]> commit ef3149eb3ddb7f9125e11c90f8330e371b55cffd upstream.
sca3000_read_ctrl_reg() returns a negative number on failure, check for this instead of zero. Signed-off-by: Luis de Bethencourt <[email protected]> Cc: <[email protected]> Signed-off-by: Jonathan Cameron <[email protected]> Signed-off-by: Willy Tarreau <[email protected]> --- drivers/staging/iio/accel/sca3000_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c index 32950ad..b30c41b 100644 --- a/drivers/staging/iio/accel/sca3000_core.c +++ b/drivers/staging/iio/accel/sca3000_core.c @@ -588,7 +588,7 @@ 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) -- 2.8.0.rc2.1.gbe9624a
