opp: Fix return in _opp_add_static_v2()

Fix sparse warning:
drivers/opp/of.c:924 _opp_add_static_v2() warn: passing zero to 'ERR_PTR'

For duplicate OPPs 'ret' be set to zero.

Fixes: deac8703da5f ("PM / OPP: _of_add_opp_table_v2(): increment count only if OPP is added")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

diff --git a/drivers/opp/of.c b/drivers/opp/of.c
index fe218af735b0ebfeab7f7de1e6682bf588f860a5..2f40afa4e65c5a0c315a75bf44c94730c10af656 100644 (file)
--- a/drivers/opp/of.c
+++ b/drivers/opp/of.c
@@ -921,7 +921,7 @@ free_required_opps:
 free_opp:
        _opp_free(new_opp);
 
-       return ERR_PTR(ret);
+       return ret ? ERR_PTR(ret) : NULL;
 }
 
 /* Initializes OPP tables based on new bindings */