linux-kernel - [PATCH 14/16] firmware: arm_scmi: Simplify error path in scmi_dvfs_device_opps

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Message-Id: <20230607124628.157465-15-ulf.hansson@linaro.org>
Date:   Wed,  7 Jun 2023 14:46:26 +0200
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Sudeep Holla <sudeep.holla@....com>,
        Cristian Marussi <cristian.marussi@....com>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     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 14/16] 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 its error path.

Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org>
---
 drivers/firmware/arm_scmi/perf.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/firmware/arm_scmi/perf.c b/drivers/firmware/arm_scmi/perf.c
index 9c5340f590e4..03a496ccc603 100644
--- a/drivers/firmware/arm_scmi/perf.c
+++ b/drivers/firmware/arm_scmi/perf.c
@@ -585,23 +585,18 @@ 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;
 	struct scmi_perf_info *pi = ph->get_priv(ph);
 
 	dom = pi->dom_info + domain;
 
-	for (opp = dom->opp, idx = 0; idx < dom->opp_count; idx++, opp++) {
-		freq = opp->perf * dom->mult_factor;
+	for (idx = 0; idx < dom->opp_count; idx++) {
+		freq = dom->opp[idx].perf * dom->mult_factor;
 
 		ret = dev_pm_opp_add(dev, freq, 0);
 		if (ret) {
 			dev_warn(dev, "failed to add opp %luHz\n", freq);
-
-			while (idx-- > 0) {
-				freq = (--opp)->perf * dom->mult_factor;
-				dev_pm_opp_remove(dev, freq);
-			}
+			dev_pm_opp_remove_all_dynamic(dev);
 			return ret;
 		}
 	}
-- 
2.34.1