[PULL 21/27] decodetree: Do not remove output_file from /dev

[Richard Henderson]

Nor report any PermissionError on remove.
The primary purpose is testing with -o /dev/null.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 scripts/decodetree.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/decodetree.py b/scripts/decodetree.py
index e4ef0a03cc..a9a0cd0fa3 100644
--- a/scripts/decodetree.py
+++ b/scripts/decodetree.py
@@ -71,7 +71,12 @@ def error_with_file(file, lineno, *args):
 
     if output_file and output_fd:
         output_fd.close()
-        os.remove(output_file)
+        # Do not try to remove e.g. -o /dev/null
+        if not output_file.startswith("/dev"):
+            try:
+                os.remove(output_file)
+            except PermissionError:
+                pass
     exit(0 if testforerror else 1)
 # end error_with_file
 
-- 
2.34.1