Suppress a compiler warning

Suppress the following compiler warning:

segment.c:698:12: warning: ā€˜nā€™ may be used uninitialized in this function [-Wmaybe-uninitialized]
  698 |         if (n < 0)
      |            ^

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
1 file changed