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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 11:28:58 +0800 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 11:28:58 +0800 |
| commit | df2071bd081408318d659cd14a9cf6ff23d874c9 (patch) | |
| tree | b31291b5fd4b9f84c629833afbfaa8d431857475 /fs/9p/fid.c | |
| parent | 97e3d94aac1c3e95bd04d1b186479a4df3663ab8 (diff) | |
| parent | be1066bbcd443a65df312fdecea7e4959adedb45 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'fs/9p/fid.c')
| -rw-r--r-- | fs/9p/fid.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/fs/9p/fid.c b/fs/9p/fid.c index 14d94420457..7317b39b281 100644 --- a/fs/9p/fid.c +++ b/fs/9p/fid.c @@ -24,6 +24,7 @@ #include <linux/module.h> #include <linux/errno.h> #include <linux/fs.h> +#include <linux/slab.h> #include <linux/sched.h> #include <linux/idr.h> #include <net/9p/9p.h> @@ -110,7 +111,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry) { int i, n, l, clone, any, access; u32 uid; - struct p9_fid *fid; + struct p9_fid *fid, *old_fid = NULL; struct dentry *d, *ds; struct v9fs_session_info *v9ses; char **wnames, *uname; @@ -151,7 +152,7 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry) if (access == V9FS_ACCESS_SINGLE) return ERR_PTR(-EPERM); - if (v9fs_extended(v9ses)) + if (v9fs_proto_dotu(v9ses)) uname = NULL; else uname = v9ses->uname; @@ -183,10 +184,18 @@ struct p9_fid *v9fs_fid_lookup(struct dentry *dentry) l = min(n - i, P9_MAXWELEM); fid = p9_client_walk(fid, l, &wnames[i], clone); if (IS_ERR(fid)) { + if (old_fid) { + /* + * If we fail, clunk fid which are mapping + * to path component and not the last component + * of the path. + */ + p9_client_clunk(old_fid); + } kfree(wnames); return fid; } - + old_fid = fid; i += l; clone = 0; } |