[PATCH] iio: adc: Fix error handling in vadc_do_conversion

[Dinghao Liu]

There is one vadc_poll_wait_eoc() call in vadc_do_conversion
that we have caught its return value but lack further handling.
Check and jump to err_disable label just like the other
vadc_poll_wait_eoc() in this function.

Signed-off-by: Dinghao Liu <dinghao....@zju.edu.cn>
---
 drivers/iio/adc/qcom-spmi-vadc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/adc/qcom-spmi-vadc.c b/drivers/iio/adc/qcom-spmi-vadc.c
index 05ff948372b3..fe36b0ba8273 100644
--- a/drivers/iio/adc/qcom-spmi-vadc.c
+++ b/drivers/iio/adc/qcom-spmi-vadc.c
@@ -324,6 +324,8 @@ static int vadc_do_conversion(struct vadc_priv *vadc,
 
        if (vadc->poll_eoc) {
                ret = vadc_poll_wait_eoc(vadc, timeout);
+               if (ret)
+                       goto err_disable;
        } else {
                ret = wait_for_completion_timeout(&vadc->complete, timeout);
                if (!ret) {
-- 
2.17.1