renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-11-17 23:25:46 +08:00
Code

fat: fix d_revalidate oopsen on NFS exports

Browse Source 
can't blindly check nd->flags in ->d_revalidate()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2011-03-10 03:45:49 -05:00
parent 8ce84eeb5b
commit 9177ada99d
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/fat/namei_vfat.c
View File

@ -43,7 +43,7 @@ static int vfat_revalidate_shortname(struct dentry *dentry)
static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd)
{
if (nd->flags & LOOKUP_RCU)
if (nd && nd->flags & LOOKUP_RCU)
return -ECHILD;
/* This is not negative dentry. Always valid. */
@ -54,7 +54,7 @@ static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd)
static int vfat_revalidate_ci(struct dentry *dentry, struct nameidata *nd)
{
if (nd->flags & LOOKUP_RCU)
if (nd && nd->flags & LOOKUP_RCU)
return -ECHILD;
/*