sbsigntool: fix compile error when enable DEBUG_BUILD

Fixes the following errors when set DEBUG_BUILD = "1":
fileio.c: In function ‘__fileio_read_file’:
fileio.c:179:12: error: ‘len’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
  179 |   *out_len = len;
      |   ~~~~~~~~~^~~~~
fileio.c:178:12: error: ‘buf’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
  178 |   *out_buf = buf;
      |   ~~~~~~~~~^~~~~

Signed-off-by: Yi Zhao <yi.zhao@windriver.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/meta-signing-key/recipes-devtools/sbsigntool/sbsigntool_git.bb b/meta-signing-key/recipes-devtools/sbsigntool/sbsigntool_git.bb
index c38fa42..b742e08 100644
--- a/meta-signing-key/recipes-devtools/sbsigntool/sbsigntool_git.bb
+++ b/meta-signing-key/recipes-devtools/sbsigntool/sbsigntool_git.bb
@@ -17,6 +17,7 @@ SRC_URI = " \
     file://0002-docs-Don-t-build-man-pages.patch \
     file://0003-sbsign-add-x-option-to-avoid-overwrite-existing-sign.patch  \
     file://0001-src-Makefile.am-Add-read_write_all.c-to-common_SOURC.patch \
+    file://0001-fileio.c-initialize-local-variables-before-use-in-fu.patch \
 "
 SRCREV_sbsigntools  ?= "f12484869c9590682ac3253d583bf59b890bb826"
 SRCREV_ccan         ?= "b1f28e17227f2320d07fe052a8a48942fe17caa5"
@@ -42,8 +43,6 @@ def efi_arch(d):
 #    --with-libtool-sysroot \
 #"
 
-CFLAGS += "-Wno-error=maybe-uninitialized"
-
 HOST_EXTRACFLAGS += "\
     INCLUDES+='-I${S}/lib/ccan.git/ \
               -I${STAGING_INCDIR_NATIVE}/efi \