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| author | Al Viro <viro@zeniv.linux.org.uk> | 2017-12-18 15:05:07 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-03-03 10:17:07 +0100 |
| commit | 7c7e39f79bad5cb368714ab746c0d578de79e493 (patch) | |
| tree | cb51b1dd099bfc02e925048a2300fc13d243c7bf | |
| parent | a97c0dc1a45fbe574eeb713f063b2e3dac73e152 (diff) | |
sget(): handle failures of register_shrinker()
[ Upstream commit 9ee332d99e4d5a97548943b81c54668450ce641b ]
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | fs/super.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/fs/super.c b/fs/super.c index 19fafe86071a..d4731c401278 100644 --- a/fs/super.c +++ b/fs/super.c @@ -476,7 +476,11 @@ retry: hlist_add_head(&s->s_instances, &type->fs_supers); spin_unlock(&sb_lock); get_filesystem(type); - register_shrinker(&s->s_shrink); + err = register_shrinker(&s->s_shrink); + if (err) { + deactivate_locked_super(s); + s = ERR_PTR(err); + } return s; } |