[PATCH v2] ubi-img/ubifs-img: change fatal error to skip recipe

[claudius.heine.ext@siemens.com]

From: Claudius Heine <ch@denx.de>

In machines that have not set those variables, it is still possible that
those classes are parsed. The parsing itself should not fail in that
case, instead those recipes should just be skipped.

Signed-off-by: Claudius Heine <ch@denx.de>
---
 meta/classes/ubi-img.bbclass   | 2 +-
 meta/classes/ubifs-img.bbclass | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta/classes/ubi-img.bbclass b/meta/classes/ubi-img.bbclass
index f61a940..777b8c4 100644
--- a/meta/classes/ubi-img.bbclass
+++ b/meta/classes/ubi-img.bbclass
@@ -5,7 +5,7 @@
 
 python() {
     if not d.getVar("UBINIZE_ARGS"):
-        bb.fatal("UBINIZE_ARGS must be set")
+        raise bb.parse.SkipRecipe("UBINIZE_ARGS must be set")
 }
 
 UBINIZE_CFG ??= "ubinize.cfg"
diff --git a/meta/classes/ubifs-img.bbclass b/meta/classes/ubifs-img.bbclass
index ed37357..881d2bb 100644
--- a/meta/classes/ubifs-img.bbclass
+++ b/meta/classes/ubifs-img.bbclass
@@ -5,7 +5,7 @@
 
 python() {
     if not d.getVar("MKUBIFS_ARGS"):
-        bb.fatal("MKUBIFS_ARGS must be set")
+        raise bb.parse.SkipRecipe("MKUBIFS_ARGS must be set")
 }
 
 inherit image
-- 
2.20.1