diff options
| -rw-r--r-- | include/net/9p/client.h | 6 | ||||
| -rw-r--r-- | include/net/9p/transport.h | 2 | ||||
| -rw-r--r-- | net/9p/client.c | 47 | ||||
| -rw-r--r-- | net/9p/mod.c | 4 |
4 files changed, 39 insertions, 20 deletions
diff --git a/include/net/9p/client.h b/include/net/9p/client.h index d26d5e98a173..f7a8d036f803 100644 --- a/include/net/9p/client.h +++ b/include/net/9p/client.h @@ -36,9 +36,9 @@ */ enum p9_proto_versions{ - p9_proto_legacy = 0, - p9_proto_2000u = 1, - p9_proto_2000L = 2, + p9_proto_legacy, + p9_proto_2000u, + p9_proto_2000L, }; diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h index d8549fb9c742..83531ebeee99 100644 --- a/include/net/9p/transport.h +++ b/include/net/9p/transport.h @@ -67,7 +67,7 @@ struct p9_trans_module { void v9fs_register_trans(struct p9_trans_module *m); void v9fs_unregister_trans(struct p9_trans_module *m); -struct p9_trans_module *v9fs_get_trans_by_name(const substring_t *name); +struct p9_trans_module *v9fs_get_trans_by_name(char *s); struct p9_trans_module *v9fs_get_default_trans(void); void v9fs_put_trans(struct p9_trans_module *m); #endif /* NET_9P_TRANSPORT_H */ diff --git a/net/9p/client.c b/net/9p/client.c index 7dd4e78878d6..431eaef697c7 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -72,23 +72,22 @@ inline int p9_is_proto_dotu(struct p9_client *clnt) EXPORT_SYMBOL(p9_is_proto_dotu); /* Interpret mount option for protocol version */ -static int get_protocol_version(const substring_t *name) +static int get_protocol_version(char *s) { int version = -EINVAL; - if (!strncmp("9p2000", name->from, name->to-name->from)) { + if (!strcmp(s, "9p2000")) { version = p9_proto_legacy; P9_DPRINTK(P9_DEBUG_9P, "Protocol version: Legacy\n"); - } else if (!strncmp("9p2000.u", name->from, name->to-name->from)) { + } else if (!strcmp(s, "9p2000.u")) { version = p9_proto_2000u; P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2000.u\n"); - } else if (!strncmp("9p2000.L", name->from, name->to-name->from)) { + } else if (!strcmp(s, "9p2000.L")) { version = p9_proto_2000L; P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2000.L\n"); - } else { - P9_DPRINTK(P9_DEBUG_ERROR, "Unknown protocol version %s. ", - name->from); - } + } else + printk(KERN_INFO "9p: Unknown protocol version %s.\n", s); + return version; } @@ -106,6 +105,7 @@ static int parse_opts(char *opts, struct p9_client *clnt) char *p; substring_t args[MAX_OPT_ARGS]; int option; + char *s; int ret = 0; clnt->proto_version = p9_proto_2000u; @@ -141,22 +141,41 @@ static int parse_opts(char *opts, struct p9_client *clnt) clnt->msize = option; break; case Opt_trans: - clnt->trans_mod = v9fs_get_trans_by_name(&args[0]); - if(clnt->trans_mod == NULL) { + s = match_strdup(&args[0]); + if (!s) { + ret = -ENOMEM; P9_DPRINTK(P9_DEBUG_ERROR, - "Could not find request transport: %s\n", - (char *) &args[0]); + "problem allocating copy of trans arg\n"); + goto free_and_return; + } + clnt->trans_mod = v9fs_get_trans_by_name(s); + if (clnt->trans_mod == NULL) { + printk(KERN_INFO + "9p: Could not find " + "request transport: %s\n", s); ret = -EINVAL; + kfree(s); goto free_and_return; } + kfree(s); break; case Opt_legacy: clnt->proto_version = p9_proto_legacy; break; case Opt_version: - ret = get_protocol_version(&args[0]); - if (ret == -EINVAL) + s = match_strdup(&args[0]); + if (!s) { + ret = -ENOMEM; + P9_DPRINTK(P9_DEBUG_ERROR, + "problem allocating copy of version arg\n"); + goto free_and_return; + } + ret = get_protocol_version(s); + if (ret == -EINVAL) { + kfree(s); goto free_and_return; + } + kfree(s); clnt->proto_version = ret; break; default: diff --git a/net/9p/mod.c b/net/9p/mod.c index 72c398275051..2664d1292291 100644 --- a/net/9p/mod.c +++ b/net/9p/mod.c @@ -80,14 +80,14 @@ EXPORT_SYMBOL(v9fs_unregister_trans); * @name: string identifying transport * */ -struct p9_trans_module *v9fs_get_trans_by_name(const substring_t *name) +struct p9_trans_module *v9fs_get_trans_by_name(char *s) { struct p9_trans_module *t, *found = NULL; spin_lock(&v9fs_trans_lock); list_for_each_entry(t, &v9fs_trans_list, list) - if (strncmp(t->name, name->from, name->to-name->from) == 0 && + if (strcmp(t->name, s) == 0 && try_module_get(t->owner)) { found = t; break; |