diff options
| author | Viresh Kumar <viresh.kumar@linaro.org> | 2022-07-04 16:10:39 +0530 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2022-07-08 11:26:44 +0530 |
| commit | 87686cc845c3be7dea777f1dbf2de0767007cda8 (patch) | |
| tree | c1a21bfe9ebad676f452baf132a586041dda4273 /drivers/cpufreq | |
| parent | 0a43452bb6b1f499b695b123e9fedf4b1a9bbf64 (diff) | |
OPP: Make dev_pm_opp_set_regulators() accept NULL terminated list
Make dev_pm_opp_set_regulators() accept a NULL terminated list of names
instead of making the callers keep the two parameters in sync, which
creates an opportunity for bugs to get in.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Steven Price <steven.price@arm.com> # panfrost
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/cpufreq')
| -rw-r--r-- | drivers/cpufreq/cpufreq-dt.c | 9 | ||||
| -rw-r--r-- | drivers/cpufreq/ti-cpufreq.c | 7 |
2 files changed, 7 insertions, 9 deletions
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c index 8fcaba541539..be0c19b3ffa5 100644 --- a/drivers/cpufreq/cpufreq-dt.c +++ b/drivers/cpufreq/cpufreq-dt.c @@ -193,7 +193,7 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu) struct private_data *priv; struct device *cpu_dev; bool fallback = false; - const char *reg_name; + const char *reg_name[] = { NULL, NULL }; int ret; /* Check if this CPU is already covered by some other policy */ @@ -218,10 +218,9 @@ static int dt_cpufreq_early_init(struct device *dev, int cpu) * OPP layer will be taking care of regulators now, but it needs to know * the name of the regulator first. */ - reg_name = find_supply_name(cpu_dev); - if (reg_name) { - priv->opp_table = dev_pm_opp_set_regulators(cpu_dev, ®_name, - 1); + reg_name[0] = find_supply_name(cpu_dev); + if (reg_name[0]) { + priv->opp_table = dev_pm_opp_set_regulators(cpu_dev, reg_name); if (IS_ERR(priv->opp_table)) { ret = PTR_ERR(priv->opp_table); if (ret != -EPROBE_DEFER) diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c index 8f9fdd864391..560d67a6bef1 100644 --- a/drivers/cpufreq/ti-cpufreq.c +++ b/drivers/cpufreq/ti-cpufreq.c @@ -173,7 +173,7 @@ static struct ti_cpufreq_soc_data omap34xx_soc_data = { * seems to always read as 0). */ -static const char * const omap3_reg_names[] = {"cpu0", "vbb"}; +static const char * const omap3_reg_names[] = {"cpu0", "vbb", NULL}; static struct ti_cpufreq_soc_data omap36xx_soc_data = { .reg_names = omap3_reg_names, @@ -326,7 +326,7 @@ static int ti_cpufreq_probe(struct platform_device *pdev) const struct of_device_id *match; struct opp_table *ti_opp_table; struct ti_cpufreq_data *opp_data; - const char * const default_reg_names[] = {"vdd", "vbb"}; + const char * const default_reg_names[] = {"vdd", "vbb", NULL}; int ret; match = dev_get_platdata(&pdev->dev); @@ -387,8 +387,7 @@ static int ti_cpufreq_probe(struct platform_device *pdev) if (opp_data->soc_data->reg_names) reg_names = opp_data->soc_data->reg_names; ti_opp_table = dev_pm_opp_set_regulators(opp_data->cpu_dev, - reg_names, - ARRAY_SIZE(default_reg_names)); + reg_names); if (IS_ERR(ti_opp_table)) { dev_pm_opp_put_supported_hw(opp_data->opp_table); ret = PTR_ERR(ti_opp_table); |