[U-Boot] [PATCH] efi_loader: Fix warning in efi_load_image()

[Tom Rini]

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: c982874e930d ("efi_loader: refactor efi_setup_loaded_image()")
Cc: Heinrich Schuchardt <xypron.glpk at gmx.de>
Cc: Alexander Graf <agraf at suse.de>
Signed-off-by: Tom Rini <trini at konsulko.com>
---
 lib/efi_loader/efi_boottime.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c
index 97eb19cd14d2..ddf857ff267d 100644
--- a/lib/efi_loader/efi_boottime.c
+++ b/lib/efi_loader/efi_boottime.c
@@ -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;
-- 
2.7.4