firmware: arm_scmi: Simplify error path in scmi_dvfs_device_opps_add()

Let's simplify the code in scmi_dvfs_device_opps_add() by using
dev_pm_opp_remove_all_dynamic() in the error path.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20230925131715.138411-8-ulf.hansson@linaro.orgSigned-off-by: Sudeep Holla <sudeep.holla@arm.com>

drivers/firmware/arm_scmi/perf.c

@@ -787,30 +787,22 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph,
 {
 	int idx, ret;
 	unsigned long freq;
-	struct scmi_opp *opp;
 	struct perf_dom_info *dom;
 
 	dom = scmi_perf_domain_lookup(ph, domain);
 	if (IS_ERR(dom))
 		return PTR_ERR(dom);
 
-	for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) {
+	for (idx = 0; idx < dom->opp_count; idx++) {
 		if (!dom->level_indexing_mode)
-			freq = opp->perf * dom->mult_factor;
+			freq = dom->opp[idx].perf * dom->mult_factor;
 		else
-			freq = opp->indicative_freq * 1000;
+			freq = dom->opp[idx].indicative_freq * 1000;
 
 		ret = dev_pm_opp_add(dev, freq, 0);
 		if (ret) {
 			dev_warn(dev, "failed to add opp %luHz\n", freq);
-
-			while (idx-- > 0) {
-				if (!dom->level_indexing_mode)
-					freq = (--opp)->perf * dom->mult_factor;
-				else
-					freq = (--opp)->indicative_freq * 1000;
-				dev_pm_opp_remove(dev, freq);
-			}
+			dev_pm_opp_remove_all_dynamic(dev);
 			return ret;
 		}