Re: [PATCH 4.4] nvme-pci: initialize queue memory before interrupts

2018-07-05 Thread Greg Kroah-Hartman
On Tue, Jun 19, 2018 at 06:23:06PM +0100, Ben Hutchings wrote: > From: Keith Busch > > commit 161b8be2bd6abad250d4b3f674bdd5480f15beeb upstream. > > A spurious interrupt before the nvme driver has initialized the completion > queue may inadvertently cause the driver to believe it has a completio

[PATCH 4.4] nvme-pci: initialize queue memory before interrupts

2018-06-19 Thread Ben Hutchings
From: Keith Busch commit 161b8be2bd6abad250d4b3f674bdd5480f15beeb upstream. A spurious interrupt before the nvme driver has initialized the completion queue may inadvertently cause the driver to believe it has a completion to process. This may result in a NULL dereference since the nvmeq's tags