[PATCH] swupdate.bbclass: make swu_files entries unique

[Claudius Heine <ch@denx.de>]

In case a sw-description contains multiple entries of the same file,
swu_files will contains multiples of the same file and thus later
operations fail.

This change makes the files in the swu_files variable unique, so they
are only operated on once.

Signed-off-by: Claudius Heine <ch@denx.de>
---
 classes/swupdate.bbclass | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/classes/swupdate.bbclass b/classes/swupdate.bbclass
index e91238d..5e54853 100644
--- a/classes/swupdate.bbclass
+++ b/classes/swupdate.bbclass
@@ -205,7 +205,7 @@ IMAGE_CMD:swu() {
         swu_file_base=$(basename $swu_file)
         # Create symlinks for files used in the update image
         swu_files=$(awk '$1=="filename"{gsub(/[",;]/, "", $3); print $3}' \
-            "${WORKDIR}/$swu_file_base/${SWU_DESCRIPTION_FILE}")
+            "${WORKDIR}/$swu_file_base/${SWU_DESCRIPTION_FILE}" | sort | uniq)
         export swu_files
         for file in $swu_files; do
             if [ -e "${WORKDIR}/$file" ]; then
-- 
2.39.2