Messages in this thread | | | Subject | Re: [patch 0/5] scsi/bnx2*: Plug hotplug race, correct locking and simplify hotplug code | From | "Martin K. Petersen" <> | Date | Wed, 26 Jul 2017 21:58:38 -0400 |
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Thomas,
> The conversion of the cpu hotplug locking to a percpu rwsem does not > longer allow recursive locking of the hotplug lock. > > The BNX2I and BNX2FC drivers install/remove hotplug states with the > hotplug lock held. The install/removal code acquired the hotplug lock > as well. > > While looking into this, I noticed an interesting hotplug race in the > BNX2FC driver, which could result in dereferencing a NULL pointer or > freed and potentially reused memory. > > The following series addresses these problems and as a final step on > top it simplifies the hotplug code in both drivers.
Applied to 4.13/scsi-fixes. Thank you!
-- Martin K. Petersen Oracle Linux Engineering
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