From: Sasha Levin <sashal@kernel.org> To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Florian Fainelli <f.fainelli@gmail.com>, Markus Mayer <mmayer@broadcom.com>, Viresh Kumar <viresh.kumar@linaro.org>, Sasha Levin <sashal@kernel.org>, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 4.19 395/671] cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency Date: Thu, 16 Jan 2020 12:00:33 -0500 Message-ID: <20200116170509.12787-132-sashal@kernel.org> (raw) In-Reply-To: <20200116170509.12787-1-sashal@kernel.org> From: Florian Fainelli <f.fainelli@gmail.com> [ Upstream commit 4c5681fcc684c762b09435de3e82ffeee7769d21 ] What we read back from the register is going to be capped at 32-bits, and cpufreq_freq_table.frequency is an unsigned int. Avoid any possible value truncation by using the appropriate return value. Fixes: de322e085995 ("cpufreq: brcmstb-avs-cpufreq: AVS CPUfreq driver for Broadcom STB SoCs") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Markus Mayer <mmayer@broadcom.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/cpufreq/brcmstb-avs-cpufreq.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/cpufreq/brcmstb-avs-cpufreq.c b/drivers/cpufreq/brcmstb-avs-cpufreq.c index 6ed53ca8aa98..77b0e5d0fb13 100644 --- a/drivers/cpufreq/brcmstb-avs-cpufreq.c +++ b/drivers/cpufreq/brcmstb-avs-cpufreq.c @@ -384,12 +384,12 @@ static int brcm_avs_set_pstate(struct private_data *priv, unsigned int pstate) return __issue_avs_command(priv, AVS_CMD_SET_PSTATE, true, args); } -static unsigned long brcm_avs_get_voltage(void __iomem *base) +static u32 brcm_avs_get_voltage(void __iomem *base) { return readl(base + AVS_MBOX_VOLTAGE1); } -static unsigned long brcm_avs_get_frequency(void __iomem *base) +static u32 brcm_avs_get_frequency(void __iomem *base) { return readl(base + AVS_MBOX_FREQUENCY) * 1000; /* in kHz */ } @@ -653,14 +653,14 @@ static ssize_t show_brcm_avs_voltage(struct cpufreq_policy *policy, char *buf) { struct private_data *priv = policy->driver_data; - return sprintf(buf, "0x%08lx\n", brcm_avs_get_voltage(priv->base)); + return sprintf(buf, "0x%08x\n", brcm_avs_get_voltage(priv->base)); } static ssize_t show_brcm_avs_frequency(struct cpufreq_policy *policy, char *buf) { struct private_data *priv = policy->driver_data; - return sprintf(buf, "0x%08lx\n", brcm_avs_get_frequency(priv->base)); + return sprintf(buf, "0x%08x\n", brcm_avs_get_frequency(priv->base)); } cpufreq_freq_attr_ro(brcm_avs_pstate); -- 2.20.1
next prev parent reply index Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <20200116170509.12787-1-sashal@kernel.org> 2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 357/671] thermal: rcar_gen3_thermal: fix interrupt type Sasha Levin 2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 358/671] thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power Sasha Levin 2020-01-16 17:00 ` [PATCH AUTOSEL 4.19 394/671] cpufreq: brcmstb-avs-cpufreq: Fix initial command check Sasha Levin 2020-01-16 17:00 ` Sasha Levin [this message] 2020-01-16 17:01 ` [PATCH AUTOSEL 4.19 467/671] PM: sleep: Fix possible overflow in pm_system_cancel_wakeup() Sasha Levin 2020-01-16 17:02 ` [PATCH AUTOSEL 4.19 516/671] power: supply: Init device wakeup after device_add() Sasha Levin
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