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efi_loader: Fix warning in efi_load_image()

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As observed with clang:
lib/efi_loader/efi_boottime.c:1624:7: warning: variable 'info'
      is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized]
                if (ret != EFI_SUCCESS)
                    ^~~~~~~~~~~~~~~~~~
lib/efi_loader/efi_boottime.c:1653:7: note: uninitialized use
      occurs here
        free(info);
             ^~~~
lib/efi_loader/efi_boottime.c:1624:3: note: remove the 'if' if
      its condition is always false
                if (ret != EFI_SUCCESS)
                ^~~~~~~~~~~~~~~~~~~~~~~
lib/efi_loader/efi_boottime.c:1602:31: note: initialize the
      variable 'info' to silence this warning
        struct efi_loaded_image *info;
                                     ^
                                      = NULL

Rather than change how we unwind the function it makes the most sense to
initialize info to NULL so that we can continue to pass it to free().

Fixes: c982874e93 ("efi_loader: refactor efi_setup_loaded_image()")
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Tom Rini 2018-09-30 10:38:15 -04:00 • committed by Alexander Graf
parent b417d475b2
commit 1c3b2f4ae1
1 changed files with 1 additions and 1 deletions
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2
lib/efi_loader/efi_boottime.c
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@ -1599,7 +1599,7 @@ static efi_status_t EFIAPI efi_load_image(bool boot_policy,
efi_uintn_t source_size,
efi_handle_t *image_handle)
{
struct efi_loaded_image *info;
struct efi_loaded_image *info = NULL;
struct efi_loaded_image_obj **image_obj =
(struct efi_loaded_image_obj **)image_handle;
efi_status_t ret;