David Howells d55e8024b3 VFS: Make clone_mnt()/copy_tree()/collect_mounts() return errors ...

copy_tree() can theoretically fail in a case other than ENOMEM, but always
returns NULL which is interpreted by callers as -ENOMEM.  Change it to return
an explicit error.

Also change clone_mnt() for consistency and because union mounts will add new
error cases.

Thanks to Andreas Gruenbacher <agruen@suse.de> for a bug fix.
[AV: folded braino fix by Dan Carpenter]

Original-author: Valerie Aurora <vaurora@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Valerie Aurora <valerie.aurora@gmail.com>
Cc: Andreas Gruenbacher <agruen@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
(cherry picked from commit be34d1a3bc4b6f357a49acb55ae870c81337e4f0)
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>

Change-Id: I82a041ca6b52cf3d8a255d1733a5deeafce80625

2019-08-06 10:44:11 +02:00

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debug

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events

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irq

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time

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trace

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async.c

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audit_tree.c

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ksysfs.c

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sys.c

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