[PATCH 1/2] x86/efistub: Avoid returning EFI_SUCCESS on error

[Ard Biesheuvel <ardb+git@google.com>]

From: Ard Biesheuvel <ardb@kernel.org>

The fail label is only used in a situation where the previous EFI API
call succeeded, and so status will be set to EFI_SUCCESS. Fix this, by
dropping the goto entirely, and call efi_exit() with the correct error
code.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
---
 drivers/firmware/efi/libstub/x86-stub.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/firmware/efi/libstub/x86-stub.c b/drivers/firmware/efi/libstub/x86-stub.c
index 51b7185f8707..a4d0164ba35e 100644
--- a/drivers/firmware/efi/libstub/x86-stub.c
+++ b/drivers/firmware/efi/libstub/x86-stub.c
@@ -566,16 +566,13 @@ efi_status_t __efiapi efi_pe_entry(efi_handle_t handle,
 	/* Convert unicode cmdline to ascii */
 	cmdline_ptr = efi_convert_cmdline(image, &options_size);
 	if (!cmdline_ptr)
-		goto fail;
+		efi_exit(handle, EFI_OUT_OF_RESOURCES);
 
 	efi_set_u64_split((unsigned long)cmdline_ptr, &hdr->cmd_line_ptr,
 			  &boot_params.ext_cmd_line_ptr);
 
 	efi_stub_entry(handle, sys_table_arg, &boot_params);
 	/* not reached */
-
-fail:
-	efi_exit(handle, status);
 }
 
 static void add_e820ext(struct boot_params *params,
-- 
2.45.2.803.g4e1b14247a-goog