kernel-fitimage: fix external dtb check

If EXTERNAL_KERNEL_DEVICETREE and dtb_image_sect are empty variables
dtb_path ends up as "/" which is available on most Unix systems but
probably not the dtb_path which is needed here. Checking for a file
makes more sense and also solves the issue with the "/".

(From OE-Core rev: c8f629b6991449cc6726f48a607d9e1bd50807ee)

Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/meta/classes-recipe/kernel-fitimage.bbclass b/meta/classes-recipe/kernel-fitimage.bbclass
index ce52297aec..67c98adb23 100644
--- a/meta/classes-recipe/kernel-fitimage.bbclass
+++ b/meta/classes-recipe/kernel-fitimage.bbclass
@@ -429,7 +429,7 @@ fitimage_emit_section_config() {
         fi
 
         dtb_path="${EXTERNAL_KERNEL_DEVICETREE}/${dtb_image_sect}"
-        if [ -e "$dtb_path" ]; then
+        if [ -f "$dtb_path" ] || [ -L "$dtb_path" ]; then
                 compat=$(fdtget -t s "$dtb_path" / compatible | sed 's/ /", "/g')
                 if [ -n "$compat" ]; then
                         compatible_line="compatible = \"$compat\";"