linux-kernel - [PATCH 7/9] firmware: arm_scmi: Simplify error path in scmi_dvfs_device_opps

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Date:   Mon, 25 Sep 2023 15:17:13 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Sudeep Holla <sudeep.holla@....com>,
        Cristian Marussi <cristian.marussi@....com>,
        Viresh Kumar <vireshk@...nel.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>
Cc:     Nishanth Menon <nm@...com>, Stephen Boyd <sboyd@...nel.org>,
        Nikunj Kela <nkela@...cinc.com>,
        Prasad Sodagudi <psodagud@...cinc.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Ulf Hansson <ulf.hansson@...aro.org>, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 7/9] 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@...aro.org>
---
 drivers/firmware/arm_scmi/perf.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 9eb58df9124d..733c5ebeb555 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/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;
 		}
 
-- 
2.34.1