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Commit 9177ada9 authored by Al Viro's avatar Al Viro
Browse files

fat: fix d_revalidate oopsen on NFS exports 



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

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8ce84eeb

fs/fat/namei_vfat.c

+2 −2
Original line number Diff line number Diff line
@@ -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;



	/*