linux-kernel - Re: [PATCH] OPP: Put opp table in dev_pm_opp_set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <006c62c2-e946-954b-6f11-2c5ab131d93d@codeaurora.org>
Date:   Wed, 12 Aug 2020 11:40:16 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH] OPP: Put opp table in dev_pm_opp_set_rate() all the time


On 8/12/2020 2:58 AM, Stephen Boyd wrote:
> We get the opp_table pointer at the top of the function and so we should
> put the pointer at the end of the function like all other exit paths
> from this function do.
> 
> Cc: Rajendra Nayak <rnayak@...eaurora.org>
> Fixes: aca48b61f963 ("opp: Manage empty OPP tables with clk handle")
> Signed-off-by: Stephen Boyd <swboyd@...omium.org>

Thanks for the fix.
Reviewed-by: Rajendra Nayak <rnayak@...eaurora.org>

> ---
>   drivers/opp/core.c | 8 +++++---
>   1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/opp/core.c b/drivers/opp/core.c
> index 9d7fb45b1786..bdb028c7793d 100644
> --- a/drivers/opp/core.c
> +++ b/drivers/opp/core.c
> @@ -893,8 +893,10 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
>   		 * have OPP table for the device, while others don't and
>   		 * opp_set_rate() just needs to behave like clk_set_rate().
>   		 */
> -		if (!_get_opp_count(opp_table))
> -			return 0;
> +		if (!_get_opp_count(opp_table)) {
> +			ret = 0;
> +			goto put_opp_table;
> +		}
>   
>   		if (!opp_table->required_opp_tables && !opp_table->regulators &&
>   		    !opp_table->paths) {
> @@ -905,7 +907,7 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
>   
>   		ret = _set_opp_bw(opp_table, NULL, dev, true);
>   		if (ret)
> -			return ret;
> +			goto put_opp_table;
>   
>   		if (opp_table->regulator_enabled) {
>   			regulator_disable(opp_table->regulators[0]);
> 

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation