[PATCH] nfsd: Fix memory leak in nfsd_getxattr

[Krishna Kumar <krkumar2@in.ibm.com>]

From: Krishna Kumar <krkumar2@in.ibm.com>

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>
---
 fs/nfsd/vfs.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff -ruNp 2.6.27-org/fs/nfsd/vfs.c 2.6.27-new/fs/nfsd/vfs.c
--- 2.6.27-org/fs/nfsd/vfs.c	2008-10-22 14:17:23.000000000 +0530
+++ 2.6.27-new/fs/nfsd/vfs.c	2008-10-22 14:19:15.000000000 +0530
@@ -411,6 +411,7 @@ 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)
@@ -420,7 +421,10 @@ static ssize_t nfsd_getxattr(struct dent
 	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