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-rw-r--r--tools/patman/gitutil.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/patman/gitutil.py b/tools/patman/gitutil.py
index 3ea256d..7b75c83 100644
--- a/tools/patman/gitutil.py
+++ b/tools/patman/gitutil.py
@@ -232,6 +232,10 @@ def ApplyPatches(verbose, args, start_point):
print stdout
return False
old_head = stdout.splitlines()[0]
+ if old_head == 'undefined':
+ str = "Invalid HEAD '%s'" % stdout.strip()
+ print col.Color(col.RED, str)
+ return False
# Checkout the required start point
cmd = ['git', 'checkout', 'HEAD~%d' % start_point]