nfsd: Fix memory leak in nfsd_getxattr

Fix a memory leak in nfsd_getxattr. nfsd_getxattr should free up memory
	that it allocated if vfs_getxattr fails.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>

1 files changed, 5 insertions, 1 deletions

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index aa1d0d6489a1..9609eb51d727 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