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gfs2: fix possible reference leak in gfs2_check_blk_type 

[ Upstream commit bc923818b1 ]

In the fail path of gfs2_check_blk_type, forgetting to call
gfs2_glock_dq_uninit will result in rgd_gh reference leak.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhang Qilong 2020-11-08 17:27:41 +08:00 committed by Greg Kroah-Hartman
parent 195f9e1a54
commit e240b43268
1 changed files with 5 additions and 5 deletions
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10
fs/gfs2/rgrp.c
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@ -2574,13 +2574,13 @@ int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, unsigned int type)
rbm.rgd = rgd;
error = gfs2_rbm_from_block(&rbm, no_addr);
if (WARN_ON_ONCE(error))
goto fail;
if (gfs2_testbit(&rbm, false) != type)
error = -ESTALE;
if (!WARN_ON_ONCE(error)) {
if (gfs2_testbit(&rbm, false) != type)
error = -ESTALE;
}
gfs2_glock_dq_uninit(&rgd_gh);
fail:
return error;
}