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vfs: fix return value from do_last()

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complete_walk() returns either ECHILD or ESTALE.  do_last() turns this into
ECHILD unconditionally.  If not in RCU mode, this error will reach userspace
which is complete nonsense.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
CC: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Miklos Szeredi 2012-03-06 13:56:34 +01:00 • committed by Al Viro
parent 097b180ca0
commit 7f6c7e62fc
1 changed files with 1 additions and 1 deletions
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2
fs/namei.c
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@ -2162,7 +2162,7 @@ static struct file *do_last(struct nameidata *nd, struct path *path,
/* sayonara */
error = complete_walk(nd);
if (error)
return ERR_PTR(-ECHILD);
return ERR_PTR(error);
error = -ENOTDIR;
if (nd->flags & LOOKUP_DIRECTORY) {