linux-kernel - build failure of next-20220923 due to f6f6f9a01374 ("thermal/intel/int340x: Replace parameter to simplify")

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 for Android: free password hash cracker in your pocket

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

Message-ID: <Yy2dT5bKGc4aOJIl@debian>
Date:   Fri, 23 Sep 2022 12:49:35 +0100
From:   "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-next@...r.kernel.org,
        Nathan Chancellor <nathan@...nel.org>, llvm@...ts.linux.dev
Subject: build failure of next-20220923 due to f6f6f9a01374
 ("thermal/intel/int340x: Replace parameter to simplify")

Hi All,

The builds of x86_64 allmodconfig with clang failed to build next-20220923
with the error:

drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c:222:6: error: variable 'ret' is used uninitialized whenever 'if' condition is true [-Werror,-Wsometimes-uninitialized]
        if (!int34x_thermal_zone->ops)
            ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c:279:17: note: uninitialized use occurs here
        return ERR_PTR(ret);
                       ^~~
drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c:222:2: note: remove the 'if' if its condition is always false
        if (!int34x_thermal_zone->ops)
        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c:211:9: note: initialize the variable 'ret' to silence this warning
        int ret;
               ^
                = 0
1 error generated.

git bisect pointed to f6f6f9a01374 ("thermal/intel/int340x: Replace parameter to simplify").

I will be happy to test any patch or provide any extra log if needed.


-- 
Regards
Sudip