From: NeilBrown Date: Wed, 4 Oct 2006 09:15:45 +0000 (-0700) Subject: [PATCH] knfsd: Fixed handling of lockd fail when adding nfsd socket X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5680c44632053a6c9464bca43083f01776d318da;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git [PATCH] knfsd: Fixed handling of lockd fail when adding nfsd socket Arrgg.. We cannot 'lockd_up' before 'svc_addsock' as we don't know the protocol yet.... So switch it around again and save the name of the created sockets so that it can be closed if lock_up fails. Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index f85472dda46..6c2ddfed2cf 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -523,11 +523,11 @@ static ssize_t write_ports(struct file *file, char *buf, size_t size) err = nfsd_create_serv(); if (!err) { int proto = 0; - err = lockd_up(proto); - if (!err) { - err = svc_addsock(nfsd_serv, fd, buf, &proto); - if (err) - lockd_down(); + err = svc_addsock(nfsd_serv, fd, buf, &proto); + if (err >= 0) { + err = lockd_up(proto); + if (err < 0) + svc_sock_names(buf+strlen(buf)+1, nfsd_serv, buf); } /* Decrease the count, but don't shutdown the * the service @@ -536,7 +536,7 @@ static ssize_t write_ports(struct file *file, char *buf, size_t size) nfsd_serv->sv_nrthreads--; unlock_kernel(); } - return err; + return err < 0 ? err : 0; } if (buf[0] == '-') { char *toclose = kstrdup(buf+1, GFP_KERNEL); diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index 4e0813b12cc..4de8626e4f5 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -492,6 +492,9 @@ svc_sock_names(char *buf, struct svc_serv *serv, char *toclose) } spin_unlock(&serv->sv_lock); if (closesk) + /* Should unregister with portmap, but you cannot + * unregister just one protocol... + */ svc_delete_socket(closesk); else if (toclose) return -ENOENT;