Fix issues

Author: caterpillar-1

pkg/ddc/base/portallocator/bitmap_allocator.go

@@ -63,17 +63,17 @@ func (b *BitMapAllocator) Release(port int) error {
 }
 
 // AllocateBatch allocates a batch of ports from the bitmap allocator.
-// This function attempts to allocate the specified number of consecutive ports and returns them as a slice.
+// This function attempts to allocate the specified number of ports and returns them as a slice.
 // If allocation fails for any reason (e.g., insufficient available ports), it will rollback all
 // previously allocated ports in this batch and exit the process with status code 1 to ensure
 // port allocation state consistency.
 //
 // Parameters:
-//   - portNum (int): The number of ports to allocate
+//   - portNum (int): The number of ports to allocate.
 //
 // Returns:
-//   - ports ([]int): A slice containing the allocated port numbers
-//   - err (error): Error if allocation fails (note: function exits process on failure)
+//   - ports ([]int): A slice containing the allocated port numbers.
+//   - err (error): Always nil if the function returns (note: function exits process on failure)
 func (b *BitMapAllocator) AllocateBatch(portNum int) (ports []int, err error) {
 	var availPort int