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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-04-13 22:48:28 +0300 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-04-18 17:50:05 +0800 |
| commit | c821ee6d2bb4cfc9991bf285f53103cde9d3593a (patch) | |
| tree | 6cbf86111841e1a988f5789dce28ebd2ebb70998 /drivers/gpu/drm/i915/gvt | |
| parent | 5ad59bf0960b807f01cb6ef8c54f68b3476a1546 (diff) | |
| download | op-kernel-dev-c821ee6d2bb4cfc9991bf285f53103cde9d3593a.zip op-kernel-dev-c821ee6d2bb4cfc9991bf285f53103cde9d3593a.tar.gz | |
drm/i915/gvt: fix a bounds check in ring_id_to_context_switch_event()
There are two bugs here. The && should be || and the > is off by one so
it should be >= ARRAY_SIZE().
Fixes: 8453d674ae7e ("drm/i915/gvt: vGPU execlist virtualization")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/execlist.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c index d077ed9..dc9aef3 100644 --- a/drivers/gpu/drm/i915/gvt/execlist.c +++ b/drivers/gpu/drm/i915/gvt/execlist.c @@ -56,8 +56,8 @@ static int context_switch_events[] = { static int ring_id_to_context_switch_event(int ring_id) { - if (WARN_ON(ring_id < RCS && ring_id > - ARRAY_SIZE(context_switch_events))) + if (WARN_ON(ring_id < RCS || + ring_id >= ARRAY_SIZE(context_switch_events))) return -EINVAL; return context_switch_events[ring_id]; |
