[PATCH v2] tools/counter: Makefile: Replace rmdir by rm to avoid make,clean failure

[Anh Tuan Phan]

Use rm -df instead of rmdir -p since rmdir requires the directory exist
so it causes "make -C tools clean" failed if someone only builds other
tools but not counter.

Fixes: 228354ed692f ("tools/counter: Makefile: Remove lingering
'include' directories on make clean")
Signed-off-by: Anh Tuan Phan <tuananhlfc@xxxxxxxxx>
---
Changes from v1:
- Use rm -df instead of checking the directory exists
- Add Fixes tag
- Update the patch title
Reference:
- v1:
https://lore.kernel.org/all/362e127d-6018-5fc6-247b-3c729b99d946@xxxxxxxxx/
---
 tools/counter/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/counter/Makefile b/tools/counter/Makefile
index a0f4cab71fe5..b2c2946f44c9 100644
--- a/tools/counter/Makefile
+++ b/tools/counter/Makefile
@@ -40,7 +40,8 @@ $(OUTPUT)counter_example: $(COUNTER_EXAMPLE)
 clean:
 	rm -f $(ALL_PROGRAMS)
 	rm -rf $(OUTPUT)include/linux/counter.h
-	rmdir -p $(OUTPUT)include/linux
+	rm -df $(OUTPUT)include/linux
+	rm -df $(OUTPUT)include
 	find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete

 install: $(ALL_PROGRAMS)
-- 
2.34.1