| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.15 063/122] dm era: check for a non-NULL metadata object before closing it | Date | Mon, 7 Jul 2014 16:57:05 -0700 |
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3.15-stable review patch. If anyone has any objections, please let me know.
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From: Joe Thornber <ejt@redhat.com>
commit 989f26f5ad308f40a95f280bf9cd75e558d4f18d upstream.
era_ctr() may call era_destroy() before era->md is initialized so era_destory() must only close the metadata object if it is not NULL.
Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Naohiro Aota <naota@elisp.net> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/md/dm-era-target.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/md/dm-era-target.c +++ b/drivers/md/dm-era-target.c @@ -1391,7 +1391,8 @@ static int era_is_congested(struct dm_ta static void era_destroy(struct era *era) { - metadata_close(era->md); + if (era->md) + metadata_close(era->md); if (era->wq) destroy_workqueue(era->wq);
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