From 24650ad43bbf8d817c9a5ca75a9ba203865f93ab Mon Sep 17 00:00:00 2001 From: ngie Date: Fri, 27 May 2016 08:48:33 +0000 Subject: Quell false positives in svc_vc_create and svc_vc_create_conn with cd and xprt Both cd and xprt will be non-NULL after their respective malloc(9) wrappers are called (mem_alloc and svc_xprt_alloc, which calls mem_alloc) as mem_alloc always gets called with M_WAITOK|M_ZERO today. Thus, testing for them being non-NULL is incorrect -- it misleads Coverity and it misleads the reader. Remove some unnecessary NULL initializations as a follow up to help solidify the fact that these pointers will be initialized properly in sys/rpc/.. with the interfaces the way they are currently. Differential Revision: https://reviews.freebsd.org/D6572 MFC after: 2 weeks Reported by: Coverity CID: 1007338, 1007339, 1007340 Reviewed by: markj, truckman Sponsored by: EMC / Isilon Storage Division --- sys/rpc/svc_vc.c | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) (limited to 'sys/rpc') diff --git a/sys/rpc/svc_vc.c b/sys/rpc/svc_vc.c index 58bdd01..731ba28 100644 --- a/sys/rpc/svc_vc.c +++ b/sys/rpc/svc_vc.c @@ -143,7 +143,7 @@ SVCXPRT * svc_vc_create(SVCPOOL *pool, struct socket *so, size_t sendsize, size_t recvsize) { - SVCXPRT *xprt = NULL; + SVCXPRT *xprt; struct sockaddr* sa; int error; @@ -189,11 +189,11 @@ svc_vc_create(SVCPOOL *pool, struct socket *so, size_t sendsize, SOCKBUF_UNLOCK(&so->so_rcv); return (xprt); + cleanup_svc_vc_create: - if (xprt) { - sx_destroy(&xprt->xp_lock); - svc_xprt_free(xprt); - } + sx_destroy(&xprt->xp_lock); + svc_xprt_free(xprt); + return (NULL); } @@ -203,8 +203,8 @@ cleanup_svc_vc_create: SVCXPRT * svc_vc_create_conn(SVCPOOL *pool, struct socket *so, struct sockaddr *raddr) { - SVCXPRT *xprt = NULL; - struct cf_conn *cd = NULL; + SVCXPRT *xprt; + struct cf_conn *cd; struct sockaddr* sa = NULL; struct sockopt opt; int one = 1; @@ -279,12 +279,10 @@ svc_vc_create_conn(SVCPOOL *pool, struct socket *so, struct sockaddr *raddr) return (xprt); cleanup_svc_vc_create: - if (xprt) { - sx_destroy(&xprt->xp_lock); - svc_xprt_free(xprt); - } - if (cd) - mem_free(cd, sizeof(*cd)); + sx_destroy(&xprt->xp_lock); + svc_xprt_free(xprt); + mem_free(cd, sizeof(*cd)); + return (NULL); } -- cgit v1.1