OPP: fix error code in dev_pm_opp_set_config()

This is an error path so set the error code.  Smatch complains about the
current code:

    drivers/opp/core.c:2660 dev_pm_opp_set_config()
    error: uninitialized symbol 'ret'.

Fixes: e37440e7e2c2 ("OPP: Call dev_pm_opp_set_opp() for required OPPs")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/3f3660af-4ea0-4a89-b3b7-58de7b16d7a5@stanley.mountain
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 494f886..3aa1873 100644 (file)
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -2630,8 +2630,10 @@ int dev_pm_opp_set_config(struct device *dev, struct dev_pm_opp_config *config)
 
        /* Attach genpds */
        if (config->genpd_names) {
-               if (config->required_devs)
+               if (config->required_devs) {
+                       ret = -EINVAL;
                        goto err;
+               }
 
                ret = _opp_attach_genpd(opp_table, dev, config->genpd_names,
                                        config->virt_devs);