Merge branch 'for-2.6.28' of git://linux-nfs.org/~bfields/linux

* 'for-2.6.28' of git://linux-nfs.org/~bfields/linux:
  nfsd: clean up expkey_parse error cases
  nfsd: Drop reference in expkey_parse error cases
  nfsd: Fix memory leak in nfsd_getxattr
  NFSD: Fix BUG during NFSD shutdown processing

3 files changed, 19 insertions, 10 deletions

diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 9dc036f1835..5cd882b8871 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -99,7 +99,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
         int fsidtype;
         char *ep;
         struct svc_expkey key;
-        struct svc_expkey *ek;
+        struct svc_expkey *ek = NULL;
 
         if (mesg[mlen-1] != '\n')
                 return -EINVAL;
@@ -107,7 +107,8 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
 
         buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
         err = -ENOMEM;
-        if (!buf) goto out;
+        if (!buf)
+                goto out;
 
         err = -EINVAL;
         if ((len=qword_get(&mesg, buf, PAGE_SIZE)) <= 0)
@@ -151,16 +152,16 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
 
         /* now we want a pathname, or empty meaning NEGATIVE  */
         err = -EINVAL;
-        if ((len=qword_get(&mesg, buf, PAGE_SIZE)) < 0)
+        len = qword_get(&mesg, buf, PAGE_SIZE);
+        if (len < 0)
                 goto out;
         dprintk("Path seems to be <%s>\n", buf);
         err = 0;
         if (len == 0) {
                 set_bit(CACHE_NEGATIVE, &key.h.flags);
                 ek = svc_expkey_update(&key, ek);
-                if (ek)
-                        cache_put(&ek->h, &svc_expkey_cache);
-                else err = -ENOMEM;
+                if (!ek)
+                        err = -ENOMEM;
         } else {
                 struct nameidata nd;
                 err = path_lookup(buf, 0, &nd);
@@ -171,14 +172,14 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
                 key.ek_path = nd.path;
 
                 ek = svc_expkey_update(&key, ek);
-                if (ek)
-                        cache_put(&ek->h, &svc_expkey_cache);
-                else
+                if (!ek)
                         err = -ENOMEM;
                 path_put(&nd.path);
         }
         cache_flush();
  out:
+        if (ek)
+                cache_put(&ek->h, &svc_expkey_cache);
         if (dom)
                 auth_domain_put(dom);
         kfree(buf);
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 59eeb46f82c..07e4f5d7baa 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -249,6 +249,10 @@ static int nfsd_init_socks(int port)
         if (error < 0)
                 return error;
 
+        error = lockd_up();
+        if (error < 0)
+                return error;
+
         error = svc_create_xprt(nfsd_serv, "tcp", port,
                                         SVC_SOCK_DEFAULTS);
         if (error < 0)
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index aa1d0d6489a..9609eb51d72 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -410,6 +410,7 @@ out_nfserr:
 static ssize_t nfsd_getxattr(struct dentry *dentry, char *key, void **buf)
 {
         ssize_t buflen;
+        ssize_t ret;
 
         buflen = vfs_getxattr(dentry, key, NULL, 0);
         if (buflen <= 0)
@@ -419,7 +420,10 @@ static ssize_t nfsd_getxattr(struct dentry *dentry, char *key, void **buf)
         if (!*buf)
                 return -ENOMEM;
 
-        return vfs_getxattr(dentry, key, *buf, buflen);
+        ret = vfs_getxattr(dentry, key, *buf, buflen);
+        if (ret < 0)
+                kfree(*buf);
+        return ret;
 }
 #endif