Reviewed-by: Konstantin Kostiuk <kkost...@redhat.com>
On Thu, Oct 31, 2024 at 6:05 AM Pierrick Bouvier <
pierrick.bouv...@linaro.org> wrote:
> Reported by clang, but not gcc.
>
> [5123/5678] Compiling C object qga/qemu-ga.exe.p/commands-windows-ssh.c.obj
> FAILED: qga/qemu-ga.exe.p/commands-windows-ssh.c.obj
> "cc" "-Iqga/qemu-ga.exe.p" "-Iqga" "-I../qga" "-I." "-Iqapi" "-Itrace"
> "-Iui" "-Iui/shader" "-IC:/msys64/clangarm64/include/glib-2.0"
> "-IC:/msys64/clangarm64/lib/glib-2.0/include" "-fdiagnostics-color=auto"
> "-Wall" "-Winvalid-pch" "-Werror" "-std=gnu11" "-O2" "-g"
> "-fstack-protector-strong" "-Wempty-body" "-Wendif-labels"
> "-Wexpansion-to-defined" "-Wformat-security" "-Wformat-y2k"
> "-Wignored-qualifiers" "-Winit-self" "-Wmissing-format-attribute"
> "-Wmissing-prototypes" "-Wnested-externs" "-Wold-style-definition"
> "-Wredundant-decls" "-Wstrict-prototypes" "-Wtype-limits" "-Wundef" "-Wvla"
> "-Wwrite-strings" "-Wno-gnu-variable-sized-type-not-at-end"
> "-Wno-initializer-overrides" "-Wno-missing-include-dirs" "-Wno-psabi"
> "-Wno-shift-negative-value" "-Wno-string-plus-int"
> "-Wno-tautological-type-limit-compare" "-Wno-typedef-redefinition"
> "-Wthread-safety" "-iquote" "." "-iquote" "C:/w/qemu" "-iquote"
> "C:/w/qemu/include" "-iquote" "C:/w/qemu/host/include/aarch64" "-iquote"
> "C:/w/qemu/host/include/generic" "-iquote" "C:/w/qemu/tcg/aarch64"
> "-D_GNU_SOURCE" "-D_FILE_OFFSET_BITS=64" "-D_LARGEFILE_SOURCE"
> "-fno-strict-aliasing" "-fno-common" "-fwrapv" "-fno-pie"
> "-ftrivial-auto-var-init=zero" "-fzero-call-used-regs=used-gpr" -MD -MQ
> qga/qemu-ga.exe.p/commands-windows-ssh.c.obj -MF
> "qga/qemu-ga.exe.p/commands-windows-ssh.c.obj.d" -o
> qga/qemu-ga.exe.p/commands-windows-ssh.c.obj "-c"
> ../qga/commands-windows-ssh.c
> ../qga/commands-windows-ssh.c:383:9: error: variable 'userPSID' is used
> uninitialized whenever 'if' condition is true
> [-Werror,-Wsometimes-uninitialized]
> 383 | if (!create_acl(userInfo, &pACL, errp)) {
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ../qga/commands-windows-ssh.c:415:15: note: uninitialized use occurs here
> 415 | LocalFree(userPSID);
> | ^~~~~~~~
> ../qga/commands-windows-ssh.c:383:5: note: remove the 'if' if its
> condition is always false
> 383 | if (!create_acl(userInfo, &pACL, errp)) {
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 384 | goto error;
> | ~~~~~~~~~~~
> 385 | }
> | ~
> ../qga/commands-windows-ssh.c:380:18: note: initialize the variable
> 'userPSID' to silence this warning
> 380 | PSID userPSID;
> | ^
> | = NULL
> 1 error generated.
>
> Signed-off-by: Pierrick Bouvier <pierrick.bouv...@linaro.org>
> ---
> qga/commands-windows-ssh.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/qga/commands-windows-ssh.c b/qga/commands-windows-ssh.c
> index 6a642e3ba81..df45c17b757 100644
> --- a/qga/commands-windows-ssh.c
> +++ b/qga/commands-windows-ssh.c
> @@ -377,7 +377,7 @@ error:
> static bool set_file_permissions(PWindowsUserInfo userInfo, Error **errp)
> {
> PACL pACL = NULL;
> - PSID userPSID;
> + PSID userPSID = NULL;
>
> /* Creates the access control structure */
> if (!create_acl(userInfo, &pACL, errp)) {
> --
> 2.39.5
>
>
