prevent deadlock

1 files changed, 4 insertions, 4 deletions

diff --git a/core/block_processor.go b/core/block_processor.go
index 6b18d4cf9..39134c63e 100644
--- a/core/block_processor.go
+++ b/core/block_processor.go
@@ -268,15 +268,15 @@ func (sm *BlockProcessor) ValidateHeader(block, parent *types.Header) error {
 		return BlockNumberErr
 	}
 
+	if block.Time <= parent.Time {
+		return BlockEqualTSErr //ValidationError("Block timestamp equal or less than previous block (%v - %v)", block.Time, parent.Time)
+	}
+
 	// Verify the nonce of the block. Return an error if it's not valid
 	if !sm.Pow.Verify(types.NewBlockWithHeader(block)) {
 		return ValidationError("Block's nonce is invalid (= %x)", block.Nonce)
 	}
 
-	if block.Time <= parent.Time {
-		return BlockEqualTSErr //ValidationError("Block timestamp equal or less than previous block (%v - %v)", block.Time, parent.Time)
-	}
-
 	return nil
 }