opp: remove WARN when no valid OPPs remain

[ Upstream commit 335ffab3ef864539e814b9a2903b0ae420c1c067 ]

This WARN can be triggered per-core and the stack trace is not useful.
Replace it with plain dev_err(). Fix a comment while at it.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/base/power/opp/of.c b/drivers/base/power/opp/of.c
index 87509cb69f792308abd8665d444ad86031457eba..68ae8e9c1edcf1d38fa094ac26cf99a93d1d43ac 100644 (file)
--- a/drivers/base/power/opp/of.c
+++ b/drivers/base/power/opp/of.c
@@ -402,8 +402,9 @@ static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np)
                }
        }
 
-       /* There should be one of more OPP defined */
-       if (WARN_ON(!count)) {
+       /* There should be one or more OPPs defined */
+       if (!count) {
+               dev_err(dev, "%s: no supported OPPs", __func__);
                ret = -ENOENT;
                goto put_opp_table;
        }