Commit 6ab4879a authored by Committed by Martin SchwidefskyBrowse files
[S390] subchannel register/unregister mutex.
Add a reg_mutex to prevent unregistering a subchannel before it has been registered. Since 2.6.17, we've seen oopses in kslowcrw when a device is found to be not operational during sense id when doing initial device recognition; it is not clear yet why that particular problem was not (yet) observed with earlier kernels... Signed-off-by: Cornelia Huck <email@example.com> Signed-off-by: Martin Schwidefsky <firstname.lastname@example.org>
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