Sentinel: fix potential NULL ptr issue for sentinel instance connection (#8627)
Sentinel: fix potential NULL ptr issue for sentinel instance connection (#8627)


PKRoma/redis,ofirluzon/redis,charsyam/redis,soloestoy/redis,charsyam/redis,antirez/redis,neomantra/redis,oranagra/redis,yossigo/redis,antirez/redis,PKRoma/redis,PKRoma/redis,charsyam/redis,yossigo/redis,PKRoma/redis,yossigo/redis,oranagra/redis,neomantra/redis,charsyam/redis,neomantra/redis,ctripcorp/redis,soloestoy/redis,soloestoy/redis,oranagra/redis,ofirluzon/redis,ofirluzon/redis,ofirluzon/redis,antirez/redis,oranagra/redis,ofirluzon/redis,yossigo/redis,yossigo/redis,ctripcorp/redis,soloestoy/redis,antirez/redis,ctripcorp/redis,soloestoy/redis,ctripcorp/redis,oranagra/redis,PKRoma/redis,charsyam/redis,neomantra/redis,neomantra/redis