On 01/20/2016 10:12 AM, Greg KH wrote:
On Wed, Jan 20, 2016 at 05:48:35AM -0500, Wenbo Wang wrote:
From: Wenbo Wang <wenbo.wang@xxxxxxxxxxxx>
During reset process, the nvme_dev->bar (ioremapped) may change,
so nvmeq->q_db shall be also updated by nvme_init_queue().
Currently nvmeq irq is enabled before queue init, so a spurious
interrupt triggered nvme_process_cq may access nvmeq->q_db just
before it is updated, this could cause kernel panic.
Signed-off-by: Wenbo Wang <wenbo.wang@xxxxxxxxxxxx>
Reviewed-by: Wenwei Tao <wenwei.tao@xxxxxxxxxxxx>
---
drivers/nvme/host/pci.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
<formletter>
This is not the correct way to submit patches for inclusion in the
stable kernel tree. Please read Documentation/stable_kernel_rules.txt
for how to do this properly.
I'll mark it stable when adding, just ignore it for now.
--
Jens Axboe
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