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Revert "driver core: don't always lock parent in shutdown"

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This reverts commit ba6353748e.

The series is being reverted before -rc1 as there are still reports of
lockups on shutdown, so it's not quite ready for "prime time."

Reported-by: Andrey Skvortsov <andrej.skvortzov@gmail.com>
Link: https://lore.kernel.org/r/ZvMkkhyJrohaajuk@skv.local
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Jeffery <djeffery@redhat.com>
Cc: Keith Busch <kbusch@kernel.org>
Cc: Laurence Oberman <loberman@redhat.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Stuart Hayes <stuart.w.hayes@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2024-09-25 10:57:02 +02:00
parent 56d16d44fe
commit eb46cb321f
1 changed files with 2 additions and 2 deletions
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4
drivers/base/core.c
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@ -4816,7 +4816,7 @@ void device_shutdown(void)
spin_unlock(&devices_kset->list_lock);
/* hold lock to avoid race with probe/release */
if (parent && dev->bus && dev->bus->need_parent_lock)
if (parent)
device_lock(parent);
device_lock(dev);
@ -4840,7 +4840,7 @@ void device_shutdown(void)
}
device_unlock(dev);
if (parent && dev->bus && dev->bus->need_parent_lock)
if (parent)
device_unlock(parent);
put_device(dev);