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vfio/platform: Disable virqfds on cleanup 

[ Upstream commit fcdc0d3d40 ]

irqfds for mask and unmask that are not specifically disabled by the
user are leaked.  Remove any irqfds during cleanup

Cc: Eric Auger <eric.auger@redhat.com>
Cc:  <stable@vger.kernel.org>
Fixes: a7fa7c77cf ("vfio/platform: implement IRQ masking/unmasking via an eventfd")
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20240308230557.805580-6-alex.williamson@redhat.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Alex Williamson 2024-03-08 16:05:26 -07:00 committed by Greg Kroah-Hartman
parent 39460da051
commit af47ec223f
1 changed files with 4 additions and 1 deletions
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5
drivers/vfio/platform/vfio_platform_irq.c
View File

@ -329,8 +329,11 @@ void vfio_platform_irq_cleanup(struct vfio_platform_device *vdev)
{
int i;
for (i = 0; i < vdev->num_irqs; i++)
for (i = 0; i < vdev->num_irqs; i++) {
vfio_virqfd_disable(&vdev->irqs[i].mask);
vfio_virqfd_disable(&vdev->irqs[i].unmask);
vfio_set_trigger(vdev, i, -1, NULL);
}
vdev->num_irqs = 0;
kfree(vdev->irqs);