Christian Brauner e571d4ee33 nsproxy: restore EINVAL for non-namespace file descriptor ...

The LTP testsuite reported a regression where users would now see EBADF
returned instead of EINVAL when an fd was passed that referred to an open
file but the file was not a nsfd. Fix this by continuing to report EINVAL.

Reported-by: kernel test robot <rong.a.chen@intel.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Cyril Hrubis <chrubis@suse.cz>
Link: https://lore.kernel.org/lkml/20200615085836.GR12456@shao2-debian
Fixes: 303cc571d1 ("nsproxy: attach to namespaces via pidfds")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

2020-06-17 00:33:12 +02:00

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