| Message ID | 20191224144954.26152-1-tiny.windzz@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Delegated to: | Chanwoo Choi |
| Headers | show |
| Series | [v2] PM / devfreq: exynos-bus: Add error log when fail to get devfreq-event | expand |
diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c index 948e9340f91c..a4c6187b1eac 100644 --- a/drivers/devfreq/exynos-bus.c +++ b/drivers/devfreq/exynos-bus.c @@ -126,6 +126,9 @@ static int exynos_bus_get_dev_status(struct device *dev, ret = exynos_bus_get_event(bus, &edata); if (ret < 0) { + dev_err(dev, + "failed to get event from devfreq-event devices %d\n", + ret); stat->total_time = stat->busy_time = 0; goto err; }
Adding an error log makes it easier to trace the function's error path. Because the error code may be rewritten on return, print error code here. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> --- v2: -update subject and fix over 80 char --- drivers/devfreq/exynos-bus.c | 3 +++ 1 file changed, 3 insertions(+)