TS-4979: Fix clang-analyzer complaint about potential null pointer.
TS-4979: Fix clang-analyzer complaint about potential null pointer.

PSUdaemon/trafficserver,persiaAziz/trafficserver,persiaAziz/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,reveller/trafficserver,persiaAziz/trafficserver,rahmalik/trafficserver,vmamidi/trafficserver,SolidWallOfCode/trafficserver,davidbz/trafficserver,reveller/trafficserver,pbchou/trafficserver,SolidWallOfCode/trafficserver,taoyunxing/trafficserver,SolidWallOfCode/trafficserver,vmamidi/trafficserver,rpufky/trafficserver,chitianhao/trafficserver,davidbz/trafficserver,reveller/trafficserver,chenglongwei/trafficserver,taoyunxing/trafficserver,taoyunxing/trafficserver,davidbz/trafficserver,persiaAziz/trafficserver,vmamidi/trafficserver,chitianhao/trafficserver,taoyunxing/trafficserver,clearswift/trafficserver,PSUdaemon/trafficserver,reveller/trafficserver,chenglongwei/trafficserver,rahmalik/trafficserver,rpufky/trafficserver,persiaAziz/trafficserver,duke8253/trafficserver,taoyunxing/trafficserver,chitianhao/trafficserver,rahmalik/trafficserver,clearswift/trafficserver,reveller/trafficserver,SolidWallOfCode/trafficserver,reveller/trafficserver,clearswift/trafficserver,chitianhao/trafficserver,PSUdaemon/trafficserver,PSUdaemon/trafficserver,chenglongwei/trafficserver,davidbz/trafficserver,bryancall/trafficserver,dyrock/trafficserver,vmamidi/trafficserver,vmamidi/trafficserver,chenglongwei/trafficserver,pbchou/trafficserver,rahmalik/trafficserver,chenglongwei/trafficserver,dyrock/trafficserver,PSUdaemon/trafficserver,rpufky/trafficserver,clearswift/trafficserver,duke8253/trafficserver,rpufky/trafficserver,taoyunxing/trafficserver,bryancall/trafficserver,dyrock/trafficserver,PSUdaemon/trafficserver,rahmalik/trafficserver,taoyunxing/trafficserver,reveller/trafficserver,dyrock/trafficserver,davidbz/trafficserver,SolidWallOfCode/trafficserver,chenglongwei/trafficserver,chenglongwei/trafficserver,taoyunxing/trafficserver,persiaAziz/trafficserver,chitianhao/trafficserver,clearswift/trafficserver,clearswift/trafficserver,SolidWallOfCode/trafficserver,rpufky/trafficserver,bryancall/trafficserver,clearswift/trafficserver,bryancall/trafficserver,vmamidi/trafficserver,dyrock/trafficserver,pbchou/trafficserver,rahmalik/trafficserver,rahmalik/trafficserver,duke8253/trafficserver,davidbz/trafficserver,rpufky/trafficserver,rpufky/trafficserver,rahmalik/trafficserver,pbchou/trafficserver,rpufky/trafficserver,duke8253/trafficserver,pbchou/trafficserver,SolidWallOfCode/trafficserver,bryancall/trafficserver,pbchou/trafficserver,taoyunxing/trafficserver,dyrock/trafficserver,PSUdaemon/trafficserver,chenglongwei/trafficserver,persiaAziz/trafficserver,clearswift/trafficserver,clearswift/trafficserver,duke8253/trafficserver,bryancall/trafficserver,rahmalik/trafficserver,PSUdaemon/trafficserver,reveller/trafficserver,PSUdaemon/trafficserver,rpufky/trafficserver,duke8253/trafficserver,chitianhao/trafficserver,reveller/trafficserver,dyrock/trafficserver,persiaAziz/trafficserver