[edk2-devel] [PATCH 1/1] OvmfPkg/LinuxInitrdDynamicShellCommand: fix uninitialized status return
Laszlo Ersek
lersek at redhat.com
Wed Mar 4 16:58:35 UTC 2020
On 03/04/20 12:49, Ard Biesheuvel wrote:
> The Linaro CI reports:
>
> OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:132:7:
> error: variable 'Status' is used uninitialized whenever 'if' condition is
> false [-Werror,-Wsometimes-uninitialized]
> if (mInitrdLoadFile2Handle != NULL) {
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:141:10:
> note: uninitialized use occurs here
> return Status;
> ^~~~~~
> OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:132:3:
> note: remove the 'if' if its condition is always true
> if (mInitrdLoadFile2Handle != NULL) {
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:130:23:
> note: initialize the variable 'Status' to silence this warning
> EFI_STATUS Status;
> ^
> = 0
>
> Fix this by pulling the return of Status into the conditional block where
> it is assigned, and return EFI_SUCCESS otherwise.
>
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
> ---
> OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c b/OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c
> index ed8fbaa77069..021b072826a9 100644
> --- a/OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c
> +++ b/OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c
> @@ -137,8 +137,9 @@ UninstallLoadFile2Protocol (
> if (!EFI_ERROR (Status)) {
> mInitrdLoadFile2Handle = NULL;
> }
> + return Status;
> }
> - return Status;
> + return EFI_SUCCESS;
> }
>
> STATIC
>
I should have caught this in review. :/
Please add the following to the commit message:
Fixes: 2632178bc683f1f28f9dbe269f85d6b26b1800de
Reviewed-by: Laszlo Ersek <lersek at redhat.com>
Thanks
Laszlo
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