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Diffstat (limited to 'kernel/fs/9p/v9fs.c')
-rw-r--r--kernel/fs/9p/v9fs.c52
1 files changed, 23 insertions, 29 deletions
diff --git a/kernel/fs/9p/v9fs.c b/kernel/fs/9p/v9fs.c
index 620d93489..6caca0250 100644
--- a/kernel/fs/9p/v9fs.c
+++ b/kernel/fs/9p/v9fs.c
@@ -52,7 +52,7 @@ enum {
/* Options that take integer arguments */
Opt_debug, Opt_dfltuid, Opt_dfltgid, Opt_afid,
/* String options */
- Opt_uname, Opt_remotename, Opt_trans, Opt_cache, Opt_cachetag,
+ Opt_uname, Opt_remotename, Opt_cache, Opt_cachetag,
/* Options that take no arguments */
Opt_nodevmap,
/* Cache options */
@@ -320,31 +320,21 @@ fail_option_alloc:
struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
const char *dev_name, char *data)
{
- int retval = -EINVAL;
struct p9_fid *fid;
- int rc;
+ int rc = -ENOMEM;
v9ses->uname = kstrdup(V9FS_DEFUSER, GFP_KERNEL);
if (!v9ses->uname)
- return ERR_PTR(-ENOMEM);
+ goto err_names;
v9ses->aname = kstrdup(V9FS_DEFANAME, GFP_KERNEL);
- if (!v9ses->aname) {
- kfree(v9ses->uname);
- return ERR_PTR(-ENOMEM);
- }
+ if (!v9ses->aname)
+ goto err_names;
init_rwsem(&v9ses->rename_sem);
rc = bdi_setup_and_register(&v9ses->bdi, "9p");
- if (rc) {
- kfree(v9ses->aname);
- kfree(v9ses->uname);
- return ERR_PTR(rc);
- }
-
- spin_lock(&v9fs_sessionlist_lock);
- list_add(&v9ses->slist, &v9fs_sessionlist);
- spin_unlock(&v9fs_sessionlist_lock);
+ if (rc)
+ goto err_names;
v9ses->uid = INVALID_UID;
v9ses->dfltuid = V9FS_DEFUID;
@@ -352,10 +342,9 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
v9ses->clnt = p9_client_create(dev_name, data);
if (IS_ERR(v9ses->clnt)) {
- retval = PTR_ERR(v9ses->clnt);
- v9ses->clnt = NULL;
+ rc = PTR_ERR(v9ses->clnt);
p9_debug(P9_DEBUG_ERROR, "problem initializing 9p client\n");
- goto error;
+ goto err_bdi;
}
v9ses->flags = V9FS_ACCESS_USER;
@@ -368,10 +357,8 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
}
rc = v9fs_parse_options(v9ses, data);
- if (rc < 0) {
- retval = rc;
- goto error;
- }
+ if (rc < 0)
+ goto err_clnt;
v9ses->maxdata = v9ses->clnt->msize - P9_IOHDRSZ;
@@ -405,10 +392,9 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
fid = p9_client_attach(v9ses->clnt, NULL, v9ses->uname, INVALID_UID,
v9ses->aname);
if (IS_ERR(fid)) {
- retval = PTR_ERR(fid);
- fid = NULL;
+ rc = PTR_ERR(fid);
p9_debug(P9_DEBUG_ERROR, "cannot attach\n");
- goto error;
+ goto err_clnt;
}
if ((v9ses->flags & V9FS_ACCESS_MASK) == V9FS_ACCESS_SINGLE)
@@ -420,12 +406,20 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
/* register the session for caching */
v9fs_cache_session_get_cookie(v9ses);
#endif
+ spin_lock(&v9fs_sessionlist_lock);
+ list_add(&v9ses->slist, &v9fs_sessionlist);
+ spin_unlock(&v9fs_sessionlist_lock);
return fid;
-error:
+err_clnt:
+ p9_client_destroy(v9ses->clnt);
+err_bdi:
bdi_destroy(&v9ses->bdi);
- return ERR_PTR(retval);
+err_names:
+ kfree(v9ses->uname);
+ kfree(v9ses->aname);
+ return ERR_PTR(rc);
}
/**