Fix two raid5/raid10 bugs in error injection case.

v1->v2:
 Handle pers->run failure in level_store
v2->v3:
 Patch 2: Release sysfs group in 'pers->run' error handling path

Zhihao Cheng (4):
  md/raid5: Hide the origin mddev->thread before takeover
  md: Handle pers->run failure in level_store
  md/raid5: Don't free conf on raid5_run failure
  md/raid10: Don't free conf on raid10_run failure

 drivers/md/md.c     | 29 ++++++++++++++++++++++++++++-
 drivers/md/raid10.c | 22 ++++++++++------------
 drivers/md/raid5.c  | 39 ++++++++++++++++++++++++++++-----------
 3 files changed, 66 insertions(+), 24 deletions(-)

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2.52.0