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path: root/drivers/opp/of.c
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Diffstat (limited to 'drivers/opp/of.c')
-rw-r--r--drivers/opp/of.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index 7f09ae8fc050..fde324dd8c46 100644
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -983,19 +983,19 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_of_get_sharing_cpus);
* Returns the performance state of the OPP pointed out by the "required-opps"
* property at @index in @np.
*
- * Return: Positive performance state on success, otherwise 0 on errors.
+ * Return: Zero or positive performance state on success, otherwise negative
+ * value on errors.
*/
-unsigned int of_get_required_opp_performance_state(struct device_node *np,
- int index)
+int of_get_required_opp_performance_state(struct device_node *np, int index)
{
struct dev_pm_opp *opp;
struct device_node *required_np;
struct opp_table *opp_table;
- unsigned int pstate = 0;
+ int pstate = -EINVAL;
required_np = of_parse_required_opp(np, index);
if (!required_np)
- return 0;
+ return -EINVAL;
opp_table = _find_table_of_opp_np(required_np);
if (IS_ERR(opp_table)) {