vfs: fix return value from do_last()
authorMiklos Szeredi <mszeredi@suse.cz>
Tue, 6 Mar 2012 12:56:34 +0000 (13:56 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 19 Mar 2012 16:02:20 +0000 (09:02 -0700)
commitebccbea3908a4c2d490fdd13d353f1b81be5e276
tree90061ef4aff231f0fe95287582e7d1b65e7bb4b8
parent989961646eaad60b22efb8e23090aea563514874
vfs: fix return value from do_last()

commit 7f6c7e62fcc123e6bd9206da99a2163fe3facc31 upstream.

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>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/namei.c