cmake: modules: dts: Fix board revision 0 overlay

Fixes an issue whereby a board revision is 0 and the overlay file exists but would not be included Signed-off-by: Jamie McCrae <[email protected]> (cherry picked from commit 4688981)
zephyrproject-rtos · Nov 24, 2023 · ac35b86 · ac35b86
1 parent 8415778
commit ac35b86
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cmake/modules/dts.cmake b/cmake/modules/dts.cmake
@@ -134,7 +134,7 @@ set(VENDOR_PREFIXES             dts/bindings/vendor-prefixes.txt)
 set_ifndef(DTS_SOURCE ${BOARD_DIR}/${BOARD}.dts)
 if(EXISTS ${DTS_SOURCE})
   # We found a devicetree. Check for a board revision overlay.
-  if(BOARD_REVISION AND EXISTS ${BOARD_DIR}/${BOARD}_${BOARD_REVISION_STRING}.overlay)
+  if(DEFINED BOARD_REVISION AND EXISTS ${BOARD_DIR}/${BOARD}_${BOARD_REVISION_STRING}.overlay)
     list(APPEND DTS_SOURCE ${BOARD_DIR}/${BOARD}_${BOARD_REVISION_STRING}.overlay)
   endif()
 else()