From: Steve French <sfrench@us.ibm.com>
Date: Sat, 14 Oct 2006 08:10:45 +0000 (+0200)
Subject: [CIFS] fs/cifs/dir.c: fix possible NULL dereference
X-Git-Tag: v2.6.16.30-rc1~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e0326df174d475bdd3da6d0a8730af3a7a347e61;p=people%2Fms%2Flinux.git

[CIFS] fs/cifs/dir.c: fix possible NULL dereference

Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
---

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 5e562bc61245..749d6fb488e2 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -48,13 +48,14 @@ build_path_from_dentry(struct dentry *direntry)
 	struct dentry *temp;
 	int namelen = 0;
 	char *full_path;
-	char dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
+	char dirsep;
 
 	if(direntry == NULL)
 		return NULL;  /* not much we can do if dentry is freed and
 		we need to reopen the file after it was closed implicitly
 		when the server crashed */
 
+	dirsep = CIFS_DIR_SEP(CIFS_SB(direntry->d_sb));
 cifs_bp_rename_retry:
 	for (temp = direntry; !IS_ROOT(temp);) {
 		namelen += (1 + temp->d_name.len);