From: Ulf Hansson ulf.hansson@linaro.org
stable inclusion from stable-v6.6.7 commit 4893588806552fa7b1e44f3f1549598d06d5bdd2 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8SSQ4
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 033ca4de129646e9969a6838b44cca0fac38e219 ]
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.org Signed-off-by: Sudeep Holla sudeep.holla@arm.com Stable-dep-of: 77f5032e94f2 ("firmware: arm_scmi: Fix possible frequency truncation when using level indexing mode") Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- 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 7aa9b4ff48d6..596316e6e1ba 100644 --- a/drivers/firmware/arm_scmi/perf.c +++ b/drivers/firmware/arm_scmi/perf.c @@ -799,7 +799,6 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph, { int idx, ret, domain; unsigned long freq; - struct scmi_opp *opp; struct perf_dom_info *dom;
domain = scmi_dev_domain_id(dev); @@ -810,23 +809,16 @@ static int scmi_dvfs_device_opps_add(const struct scmi_protocol_handle *ph, 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; }