staging: iio: accel: fix error check
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>
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index a8f533a..ec12181 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -594,7 +594,7 @@
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)