--- /dev/null
+From 4d19bffcfd66e25d3ee74536ae2d2da7ad52e8e2 Mon Sep 17 00:00:00 2001
+From: Barry Grussling <barry@grussling.com>
+Date: Sun, 12 Jan 2020 12:33:32 -0800
+Subject: [PATCH] mtd-utils: Fix return value of ubiformat
+Organization: O.S. Systems Software LTDA.
+
+This changeset fixes a feature regression in ubiformat. Older versions of
+ubiformat, when invoked with a flash-image, would return 0 in the case no error
+was encountered. Upon upgrading to latest, it was discovered that ubiformat
+returned 255 even without encountering an error condition.
+
+This changeset corrects the above issue and causes ubiformat, when given an
+image file, to return 0 when no errors are detected.
+
+Tested by running through my loading scripts and verifying ubiformat returned
+0.
+
+Upstream-Status: Backport [2.1.2]
+
+Signed-off-by: Barry Grussling <barry@grussling.com>
+Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
+Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
+---
+ ubi-utils/ubiformat.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/ubi-utils/ubiformat.c b/ubi-utils/ubiformat.c
+index a90627c..5377b12 100644
+--- a/ubi-utils/ubiformat.c
++++ b/ubi-utils/ubiformat.c
+@@ -550,6 +550,7 @@ static int format(libmtd_t libmtd, const struct mtd_dev_info *mtd,
+ struct ubi_vtbl_record *vtbl;
+ int eb1 = -1, eb2 = -1;
+ long long ec1 = -1, ec2 = -1;
++ int ret = -1;
+
+ write_size = UBI_EC_HDR_SIZE + mtd->subpage_size - 1;
+ write_size /= mtd->subpage_size;
+@@ -643,8 +644,10 @@ static int format(libmtd_t libmtd, const struct mtd_dev_info *mtd,
+ if (!args.quiet && !args.verbose)
+ printf("\n");
+
+- if (novtbl)
++ if (novtbl) {
++ ret = 0;
+ goto out_free;
++ }
+
+ if (eb1 == -1 || eb2 == -1) {
+ errmsg("no eraseblocks for volume table");
+@@ -669,7 +672,7 @@ static int format(libmtd_t libmtd, const struct mtd_dev_info *mtd,
+
+ out_free:
+ free(hdr);
+- return -1;
++ return ret;
+ }
+
+ int main(int argc, char * const argv[])
+--
+2.27.0
+
