Commit cab0936a authored by Ian Kent's avatar Ian Kent Committed by Linus Torvalds
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autofs4: check for invalid dentry in getpath 



Catch invalid dentry when calculating its path.

Signed-off-by: default avatarIan Kent <raven@themaw.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent afec570c

fs/autofs4/waitq.c

+1 −1
Original line number Diff line number Diff line
@@ -171,7 +171,7 @@ static int autofs4_getpath(struct autofs_sb_info *sbi, 
	for (tmp = dentry ; tmp != root ; tmp = tmp->d_parent)

		len += tmp->d_name.len + 1;



	if (--len > NAME_MAX) {

	if (!len || --len > NAME_MAX) {

		spin_unlock(&dcache_lock);

		return 0;

	}