summaryrefslogtreecommitdiff
path: root/fs/9p/fid.c
diff options
context:
space:
mode:
authorDan Williams <dan.j.williams@intel.com>2010-05-17 16:30:58 -0700
committerDan Williams <dan.j.williams@intel.com>2010-05-17 16:30:58 -0700
commit0b28330e39bbe0ffee4c56b09fc415fcec595ea3 (patch)
treefcf504879883763557e696eff81427b1ab78f76b /fs/9p/fid.c
parent058276303dbc4ed089c1f7dad0871810b1f5ddf1 (diff)
parentcaa20d974c86af496b419eef70010e63b7fab7ac (diff)
Merge branch 'ioat' into dmaengine
Diffstat (limited to 'fs/9p/fid.c')
-rw-r--r--fs/9p/fid.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 08b2eb157048..7317b39b2815 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;
@@ -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;
}