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2019 Sep 03
0
[PATCH AUTOSEL 5.2 18/23] virtio/s390: fix race on airq_areas
...d-off-by: Heiko Carstens <heiko.carstens at de.ibm.com> Signed-off-by: Sasha Levin <sashal at kernel.org> --- drivers/s390/virtio/virtio_ccw.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/s390/virtio/virtio_ccw.c b/drivers/s390/virtio/virtio_ccw.c index 6a30768813219..8d47ad61bac3d 100644 --- a/drivers/s390/virtio/virtio_ccw.c +++ b/drivers/s390/virtio/virtio_ccw.c @@ -132,6 +132,7 @@ struct airq_info { struct airq_iv *aiv; }; static struct airq_info *airq_areas[MAX_AIRQ_AREAS]; +static DEFINE_MUTEX(airq_areas_lock); #define CCW_CMD_SET_VQ 0x13 #define CCW_CMD_VDEV_RE...